®tj^ ^. p. pU pbmrg 'Novih Carclma State Colteae SPCCIAL C.KLtCTIONS ^ I IIIH ilfi— iiii- II — ~- THIS BOOK MUST NOT BE TAKEN FROM THE LIBRARY BUILDING. PRACTICAL ORANGE CULTURE INCLUDING THE CairG of ttie OraiB, Lemoi, Lime AND OTHER CITRUS FRUITS, AS GROWN IN FLORIDA. .^. H. IvC-^^rLT-V-XXiXjE. JACKSONVILLE, FLA : ASHMKAD BROS.. ROOKSELLKRS, STATIONERS, PRINTERS AND BINDERS 1883. PREFACE. Orange culture, like everything else in our busy mod- ern world, is progressive. What a few years since was a chaos of conflicting opinions and practice has been reduced to something like system. The more success- ful growers throughout the State pursue essentially the same plan, modified to suit the peculiarities of soil, loca- tion, etc., with which they have to deal. The following pages are intended to be a practical guide to orange culture, according to the most approved methods. The profits and delights of orange culture do not come, strictly speaking, within the scope of this work, and they have been too often and too fully set before the public to need further mention here. The author has not attempted the history of the orange and its congeners any further than is involved in a descriptive list of the varieties known in Florida. The origination and introduction of the several species and varieties are treated at length in other accessible works, and though the subject is one of great interest, it has no practical bearing upon successful culture in this State. Bearing groves have been n)ade in an incredibly short time by grafting or budding wild trees found in the State. These wild groves, few at most, have now almost or entirely disappeared, and methods for their development having no longer a general application have not been thought sufficiently pertinent for a place in these pages. As few growers now raise their own trees, saving time 6 PREFACE. and money by buying them ready to plant in grove form ; no space is given to the germination of seed, grow- ing of young trees, or propagation of varieties. The classification of species and varities has been made as complete as possible, with comprehensive hints on selection for general planting ; and special attention has been given to the modifications of culture required by different locations and soils. The author has endeavored to exclude purely theoret- ical and irrelevant matter, and in as concise and simple manner as possible to keep strictly to the necessary re- quirements of practical culture. PKEFACE. CHAPTER I. — Situation and Exposure. The Frost Xiine— Water Protection— Forest Protection— Forest Culture— Wind Breaks 9 CHAPTER II.— Soil. High Hammock— Low Hammock— High Pine Land— Low Pine Land— Scrub Land— The Best Soil for Orange Culture 13 CHAPTER III.— Preparing the Ground. Wild Land— Low Land— Drainage 17 CHAPTER IV.— Choice of Treej^. Variety — Age — Size— Thorns — Shape— Fibrous Roots — Stock — Method of Propagation 22 CHAPTER V. — Selection of Varieties. The Sweet Orange— The Mandarin or Tangierine Orange— The Bitter Orange 28 CHAPTER VI.— Season for Planting. The Best Time— Late Planting 3.5 (iHAPTER VII.— Distance Apart. Size of Trees — In the Northern Part of the State — On Low Lands— On High Lands— Dwarf Trees— How to Ascertain the Number on an Acre 37 CHAPTER VIII.— Planting. Handling the Trees— Preliminaries— Setting Out the Trees- Watering— Deep Planting — Large Trees 41 3 CONTENTS. CHAPTER IX.— Cultivation. Deep Culture— Shallow Culture— Infrequeut or Partial Culture —The Suspension of Cultivation Late in Summer— Summer Shading by a Green Crop— Cropping— Other Fruits— Best Methods on High Land— Best Methods on Low Land- Mulching 46 CHAPTER X.— Mulching. Its Advantages— Its Application— Objections Considered 63 CHAPTER XI.— Fertilizers. Humus— Green Crops— Mulching -Muck— Barn Yard Manure- Cotton Seed— Lime— Potash— Phosphoric Acid— Land Plas- ter—The Value of the Compost Heap — The So-called Com- plete Manures 57 CHAPTER XII.— Fertilizing. The Best Fertilizers— The Best Time— Application— Leachy Soils— Hammock Land— Young Trees— Bearing Trees 68 CHAPTER XIII.— Pruning. Object— System— Young Trees— Older Trees— Height of the Stem— Time— Instruments— Root Pruning 74 * CHAPTER XIV.— Diseases. Die-back— Limb Blight— Gum Disease or Bleeding— Foot Rot- Sweet or Black Rust 79 CHAPTER XV.— Insects. Scale Insects— The Mealy Bug— Other Insects— The Rust Mite... 85 CHAPTER XVI.— Marketing the Crop. Drying or Packing-house — Gathering — Curing— Sorting— Wrap- ping— Packing 93 CHAPTER XVII.— The Lemon, Lime and Other Species. The Lemon — The Lime — Other Species 09 APPENDIX. Classification and Description of the Species and Varieties of the Citrus as known in Florida— Dwarfing the Orange 103 ORANGE CULTURE. CHAPTER I SITUATION AND EXPOSURE. «) HE FROST - LINE.— ISIuch nonsense has been circulated about what is termed the " frost- line," i. e. an imaginary line somewhere in the ^^ State, north of which, the orange cannot be suc- cessfully grown, and south of which lies the so-called " Orange Belt." The severe cold in December 1880, froze the fruit and stripped the leaves from the trees in the northern part of the State, in some places killing the tender twigs and branches ; further south the foliage was uninjured, though the fruit was frozen ; still further south neither fruit nor trees were injured. Still, little serious damage was done ; even where the trees suffered most they speedily recovered and grew all the more vig- orously on account of the check they had received. The destruction of the fruit was the greatest loss sus- tained ; this could have been avoided by gathering the fruit earlier, as it matures before there is danger of frost. On the other hand there have been instances where groves in the southern portion of the orange region seemed to suffer as much as those further north, owing to the irregularity of the cold wave, or to the trees being full of sap and growing. This has led many to the op- posite and quite as erroneous conclusion that orange trees are equally liable to injury from cold in all parts of the State. Every locality is visited by frosts, but there can be no doubts that they are modified by latitude and are MflfERTT UBitfr lO JIAXVILLE'S TREATISE ON most frequent and severe in the more northern counties. Trees are probably less frequently injured by cold south of about 29^ and 30' north latitude; no arbitrary line however can be drawn, as many locations above this are naturally protected from cold, and at' some points below it the frost is unusually severe. Still the cold is seldom severe enough anywhere within the State, except in the northwestern portion, to injure bearing trees, as their dense foliage affords them excellent protection. Young trees are more liable to injury, and are sometimes killed to the ground, but where there is no natural protection they can be artificially protected in winter until they attain size enough to protect themselves. Exemption from frost is not the only consideration in orange cul- ture, and the northern jDortion of the State possesses some decided advantages. We find therefore that w^here- ever suitable soil is found throughout eastern, middle, and southern Florida the orange can be and is profitably grown. Water Protection. — It is well known that currents of cold air passing over large bodies of deep water are modified in temperature. The cold waves in this State come from the north or northwest. Bodies of water on the north or northwest therefore afford more or less pro- tection from cold according to their extent and proxim- ity. In sections where there is severe cold in winter, situations thus pi'otected, are especially desirable. Forest Protection. — The orange when properly pro- tected will stand considerable cold. This is true of other tender plants ; geraniums exposed all night in freezing weather will survive if moved early in the morning and allowed to thaw out gradually in a cool dark celler. For the same reason, orange trees, if shielded from the morning sun by forest trees or other shade, are less liable to injury from frost. It is the sun which damages the ORANGE CULTURE. 11 trees after a severe frost by thawing the congealed sap too rapidly and destroying the life of the part wherever the sap vessels are rnptured, if a cloudy day ensues, no harm is done. Bodies of water protect by keeping the temperature above the point of injury ; forest shade pro- tects by shielding from the sun when the temperature falls below this point. Forest Culture. — The advantages of forest protec- tion has led to the advocacy, and in some cases, to the practice of forest culture ; that is to say, the cultivation of the orange between strips or belts of timber arranged to shade the trees during the forepart of the day. Upon high sand hammocks covered with those species of deep-rooted, hard wood trees, which do not interfere with the growth of the orange, this is an excellent plan. As much of the orange region lies below the necessity of such protection, as some lands that are already cleared, and the bulk of the orange lands being pine land, where the timber would afford too little shade to be of use, and where, like that upon much of the hammock land, it is unsuited to the purpose and uncongenial to the orange, this plan will probably never be largely adopted. It will not pay to plant trees for this purpose, as the orange trees will protect themselves as soon as they at- tain sufficient size. When this method is adopted the requisites to success are: keeping the forest roots fi-om interfering with the orange trees ; cultivating the latter as thoroughly as upon open land ; and while keeping the morning sun from the trees in winter, to allow the sun to reach them a portion of the time, which is neces- sary to the perfect development of tree and fruit. Wind - Breaks. — Upon the coast and in some other sections of the State, violent winds do considerable dam- age to the trees. But generally throughout the orange region the necessity of wind-breaks is not yet felt. As ^2 MANVILLE'S TREATISE ON the country is denuded of its forests the winds will have greater sweep. In those sections liable to violent winds, and indeed, in any locality which will be without shelter from the winds when the timber has been cleared away, it is the part of wisdom to leave or plant belts of forest trees upon the side of the grove from which the most severe winds come. There are many species v)f deep rooted, strong growing, shapely forest trees in the State which would serve this purpose admirably. There is an important exception to the benefits of surrounding belts of timber to be noted in those sections where there is danger from frost. In such localities, timber upon the north or west does more damage by causing the cold to settle down with greater intensity and by re- flecting powerfully the rays of the morning sun, than it does good by shielding from the wind. Timber upon the south and east is not open to this objection, but is rather beneficial as we have seen above. Much of the damage done to the tree, but especially to the fruit, by being whipped about in the wind, is caused by thorns, and can be avoided by planting t hornless trees. CHAPTER II SOIL. ^»r^ IGH HAMMOCK.— "High hammocks are ^^1^ found iu many poilions of the State, and are >^S^ generally covered with a luxuriant growth of ^"^ magnolia, live and w hite oak, hickory and other hard wood trees. The surface soil in these high ham mocks is usually deep, consisting of all intermediate grades between a light and rather heavy loam, with a sub-soil of sandy loam or a ferruginous clay." In some places the soil is mixed with shell, and where not too abundant, they are not detrimental. To many, the word hammock conveys the idea of low land, but much of the best hammock land is high, and constitutes the richest and most productive land iu the State. High ham- mocks of the first quality, having deep soil and heavy hard wood timber, are probably the best orange lands in the State. Low Hammock. — "Low hammocks are distributed over the State, and are generally covered with palms, live and evergreen oaks, bays, cedar, etc. They are dif- ficult to clear, but not more so than the rich timbered lands of the North and West. If ditched and em- banked when low or near streams, to guard them against extraordinary floods and rains, they would furnish for cultivation some of the richest lands in the State. In these hammocks is found a dark vegetable mould, from one to two feet in depth, below which a dark sand exists, 14 MANVILLE'S TREATISE ON generally becoming paler until clay or limestone rock i< reached." Low hammock lands are more expensive to prepare for trees than high hammocks. They em- brace the richest lands in the State, and when of good quality and above liability to overflow, they probably yield the quickest returns of any soil. High Pine Lauds. — " The elevated and undulating pine lands are remarkable for their beauty, salubrity and productiveness. The timber is generally large, tall and straight." There is no undergrowth excepting scat- tering dwarf oaks, and a few hickories in some places, the ground being covered with wire grass. " These lands have a surface soil of fair depth, containing a large amount of vegetable matter. Beneath the surface soil will be found a stratum of loamy sand of variable depth, and beneath this, clay. In some localities the clay is near the surface." High pine lands are compar- itively poor, and require liberal applications of ferti- lizers to produce the best results ; in other particulars they have the same general advantages of high ham- mocks. The soil is esteemed as good, better, or best, ac- cording, as the timber is exclusively pine, oak and pine, or hickory and pine. Low Pilie Land. — Low pine lands may be divided into two classes, namely. Flat Pine Land and Lower Pine Land. Flat pine lands are found at points in the interior, along some of the river's, and near the coasts. Some are covered with a growth of bushes, and sparsely supplied with grass and pine trees, others are covered with medium sized pine timber and wire grass, and still others consist of savannahs, without trees or bushes. During the rainy season these lands are liable to over- flow, and as a consequence are unfit for cultivation. In some of the flat lands there will be found a layer of hard pan or clay. At some points the surface soil is ORANGE CULTURE. 15 black, deep and apparently productive, but in dry weather it bakes, and is unsuitable for gardening or ag- ricultural purposes. " Lower pine lauds are not subject to overflow during the rainy season. One objection to some of them is the fact that they are encumbered with bushes and saw pal- metto, and are difficult to clear," Others have no un- dergrowth save the common wire grass. These lands are underlaid with sand or clay, or where hard pan is found it is too deep to be injurious. They are either naturally drained or susceptible of thorough artificial drainage, and are amons: the best pine lands in the State. The above distinction between " flat pine lands " and " lower pine lands " should be observed, In common usage the terms " low pine land " and " flat woods " are applied indiscriminately to all pine lands excepting the high rolling pine land and scrubs of the interior, em- bracing a varied range of surface from overflowed bot- toms to elevated level tracts sufficiently inclined to carry off" surplus water. The quality of the soil differs as widely as the appearance of the surface ; in some places (described above as " flat pine lands ") it is unfit for culture of any kind, while in others, (described above as "lower pine lands ") it is adapted to the orange or other crops. From failures made upon the former, a general prejudice has arisen against low pine lands; some writers go so far as to condemn their use entirely for orange culture, failing to recognize the fact that there is a vast difference in the land they thus include in a sweeping denunciation. Upon the better class of these lands are located some of the finest groves in the State, many of which have been brought into successful bearing, and it is high time that a distinction be made between worth- less " flat woods " and low pine lands that are really excellent. 16 MANVILLE'S TREATISE ON Scrub Land. — Scrub lands have a coarse white, or poor yellowish, sandy soil. In the scrub sections water is scarce. The timber usually consists of stunted pine and oak. Notwithstanding the poverty of scrub lands, some large groves have been made upon them by irri- gation and extensive fertilization. It is very doubtful however, whether they can be profitably utilized for orange culture to any considerable extent. The Best Soil for Orange Culture. — It costs less to clear and prepare high lands than low ; they du not, like the latter, require exjiensive drainage, and when properly cultivated are not more liable to suffer from drought. Still, low lands (either pine or hammock,) which are adapted to the orange, are profitably cultiva- ted, yielding perhaps quicker results, though the trees do not attain as large size or as great age as on high land. High hammock, high pine, low hammock, and low pine are generally valued for orange culture in the order mentioned, though the orange succeeds upon them all, and each class of soil has its advocates who regard it as yielding the best results. In the above chapter the quotations are from an article on the soils of Florida, by Dr. C. J. Kenworthy, in which he di- vides the lands of the State topographically into Flat Pine Lands, Elevatad Pine Lands, Lower Pine Lands, Low Ham- mocks, High Hammocks, Scrubs, Prairies, Swamps and Marshes. ^'^cA^(^<^^^ts)A.>2 CHAPTER III. PREPARING THE GROUND. 'ANY iu their haste to get trees into the ground neglect to give the soil the proper prepa- ration ; time is lost rather than gained by this, as the trees will do no good until the soil is in condition for their growth, and thej'^ are very liable to become diseased or stunted. The trees will be further advanced in a few years time if planted on soil which has been thoroughly prepared, even if this delays the operation an entire year. Wild Land. — If the grove is to be made on wild land, the first work of preparation is to cut and clear a\vay the timber. Some high pine and high hammock lands are naturally so sweet and friable that trees do well planted before the land is cleared of roots or plowed, provided places for the trees are thoroughly dug over, pulverized, and all the roots, turf, etc., removed. Even when this plan is pursued on lands that will ad- mit of it, the general surface must be broken immedi- ately after the trees are set, or they will soon suffer. Although there are exceptional instances where with proper treatment the trees can be set before the land is broken, as a general rule it is far better not to plant until the entire surface has been prepared. High pine land can often be broken with the plow as soon as the timber is cleared away, on other pine and all ham- mock lauds, the roots must be grubbed out or removed 18 MANVILLE'S TREATISE ON before the plowing can be done. The removal of stamps is not necessary, but renders subsequent culture much easier. After it has been thoroughly broken with the plow, the soil should be smoothed with harrow or drag that the trees may be planted upon the same level. When the land is very new, large holes should be dug where the trees are to be planted, and after the earth has been sweetened by sun and air, it should be returned to the holes again. Low Land. — Low lands, especially low pine lands, are more difficult to subdue than higher lands. Owing to their saturation with water, they are often very sour, requiring some time and effort to reduce them to a proper pulverulent state. Such soils should never have trees set upon them until in condition for their reception. If necessary, it is far better to defer planting until some other crop has been first grown upon the soil. Upon low land it is a good plan where practicable to plant the trees on beds thrown up by the plow with w^ater furrows between the rows to conduct heavy rain-fall to the ditches. These beds should be raised from one to three feet above the surface, as the case may require. Drainage. — The great desideratum upon low lands, and all soils liable to become saturated with water, ' is drainage. At present, this is usually accomplished by opan drains or ditches. Wherever possible, under- drainage should be substituted, it is more expensive at the start, but in course of a few years will have cost less, occasioned less annoyance, and been more efficient than open drains. Under-drains work admirably where there is much less fall than is generally supposed. The writer has succeeded in thoroughly under-draining a piece of low land where there was but one inch of fall in every ten feet of the drain, the latter being some six hundred feet in length. Tiles when properly laid, make the most ORANGE CULTURE. -19 durable drain, but in this State they are quite expensive, and unless put down with great care, are liable to fill up with the fine sand which constitutes so large a portion of the soil. The tiles being short (usually fourteen to six- teen inches), it is very difficult to lay them in such a soil so as to retain their position. Owing to inequalities in the ground or imperfect laying, they are liable to sink in places from the general inclination of the drain, thus forming corners which collect debris and eventually clog the drain. The only way to remedy such a stop- page is to remove all the tiles until the defective place is reached. In a stiff clay soil these objections would have less weight. Drains of " heart pine " lumber will last for years, cost much less than tile, and are more easily and less expensively laid. Another advantage of board drains over tile is that they are in longer sections, (they should be made twenty feet or more in length) and are therefore not liable to sink from the position in which they are placed. When properly constructed, drains of this character can be readily cleaned without being taken up, in fact, it costs less to clean them than it does to clean open drains. To be efficient, ditches must be reopened in our soil as often as once a year, while un- der-drains of " heart-pine " will last for years without clogging. The drains above referred to have now been laid six years, and are still working perfectly. Board drains in the shape of the letter V probably clear them- selves better than square box drains, but the latter will do good work for a very long time, and the writer has found them easier of construction, more convenient to clean, and for practical use, the best. The boxes should be made in as long sections as possible. The sides should be lapped over and nailed to the edges of the bottom, the top rests upon the sides unnailed, being held in place by cleats nailed upon the underside of the top, and fit- 20 MANVILLE'S TREATISE ON" ting between the sides. The bottom board and the cleats on the top, being between the sides, and the top resting upon the sides presents the greatest possible resistance to pressure. The following diagram represents a trans- verse section of the drain as thus constructed : C A A represent the I sides, B the bottom, C the top, and D the cleats nailed to the under side of the top. By digging down to and removing the unfastened top, the drain can easily be cleaned with a hoe of the same width as the inside of the drain. The size of drains and their dis- B tance apart should be governed by their length and tiie amount of fall they have. Drains five or six inches in diameter placed fifty or sixty feet apart will afford thorough drainage where there is as little descent as will render under-drainage possible. Where the de- scent is greater they can be placed farther apart and have less diameter. To lay under-drains does not re- quire as much excavating as for open drains, a narrow opening just wide enough at the bottom to receive the boxes is sufficient. Where there is danger of caving, the opening should be made and the drains laid one section at a time. The depth of the drain will depend somewhat upon circumstances, the deeper they are, the greater will be the amount of soil drained. Where they cannot be laid deeper, if simply placed below the reach of the plow-share they will dry out the soil a ORANGE CULTURE. 21 great deal. From two to four feet is the best depth in average Florida soil. The drains should be laid at right angles with or diagonally across the steepest nat- ural descent of the surface. In this way they intercept the water courses in the soil, and carry off the water much more effectually than if laid in the same direc- tion the latter flows. CHAPTER IV CHOICE OF TREES. ORKS heretofore published upon orange culture have devoted considerable space to methods of raising young plants until ready for transplanting into grove form. Until re- cently such knowledge has been useful, and, indeed, necessary to the grower, as he must needs raise his own trees or buy from a neighbor having a surplus. As trees for j^lanting out are now supplied almost entirely by specialists giving their exclusive attention to this branch of the business, the author has omitted all con- sideration of the subject as foreign to the purpose in a work of this kind. A nurseryman possessing the requisite knowledge and necessary facilities for propaga- ting upon a large scale, can supply the grower with trees of better quality and at less expense than he could produce himself, saving him besides much annoyance and a considerable loss of valuable time. Trees grown upon the most approved plan receive close attention, and are kept vigorously growing from the germina- tion of the seed until ready for planting ; they are propagated from the best varieties, and are pruned and trained systematically to produce the best shaped trees in the shortest time. The grower cannot be too careful in selecting his trees. It does not pay to plant poor trees ; they are dear at any price. If of inferior variety, they must be rebudded ; if affected by ORANGE CULTURE. 23 disease or insect, they must be treated ; if stunted, they must be revitalized'; if they have grown unpruned or misshapen, they must be trained into proper form ; if too old or too large, an unsatisfactory result is attended by no end of risk and pains ; all of which causes trouble and expense, and greatly retards the ultimate perfection of the grove. If the best result is to be obtained, the trees must be up to the standard in variety, size, age, stock, shape, etc., and must also be properly handled from the nursery to their place in the grove. Variety. — This is a subject of so much importance that its consideration is reserved to the next chapter. Age. — It is an important fact that as a rule healthy budded orange trees bear as soon as they attain suf- ficient size to hold fruit. Where there is a difference in the time of bearing it is due to variety rather than age. The supposition that the older an orange tree is, the sooner it will bear, is a mistake, so far as budded trees are concerned. A tree crowded in nursery rows, or otherwise neglected, will remain long past the bear- ing age dwarfed in size and without fruit, while younger trees in grove form are full sized and bearing heavy crops. A tree four years old has no advantage over a tree two years old of the same size ; the former may bear first a few premature fruit owing to its stunted condition; but the latter will grow more rapidly, make the strongest tree, and bear profitable crops soonest. The younger a tree of a given size the more desirable, as it indicates vigorous growth. Size and thrift are, therefore, the important considerations, rather than age. Size. — Upon the advantages of small trees, a recent number of the Florida Dispatch says : " Nearly all new beginners go in for ' big trees ' — ' some that will bear right ofl^.' To such readers we would say that in select- ing trees for transplanting the largest are not the best. 24 MAXVILLE'S TREATISE ON Medium-sized trees have better roots, are easier handled, are less liable to injury from transportation, start quicker and grow faster than tall' plants that have been drawn up weakly in thick nursery rows. Old trees have wider spread roots, which are certain to be severely abridged in the lifting. The tops must then be pruned severely to correspond with the destruction of the roots, so that there is nothing gained in the way of size, and the check or 'set back' to old or larger trees is often fatal. * * * * Plant small or me- dium sized trees, of healthy, vigorous growth, and hav- ing plenty of roots, and let the impatient ' green hoi'ns' tussle with the big trees !" As a general rule nothing is gained by planting large trees, smaller trees will over- take them in a few years ; they are besides less expen- sive, as to first cost, transportation, planting, etc. A bud of one year's growth upon a stock two or three years old is the most profitable and convenient size and age. Thorns. — It is much more agreeable to work among trees which have no thorns. Thorns on bearing trees are very liable to puncture the fruit, especially in windy weather, causing it to decay and drop ofi". The writer has seen thorny trees shed a large portion of their crop on this account. Those leading varieties which are thornless or nearly so, other things being equal, are much the most desirable. Shape. — At the age and size above mentioned the stock should be smooth and straight, budded from six inches to one foot from the ground, not extending above the bud, but cut off smoothly at a slight angle just above it. The bud should have one upright stem, and if branched, the branches should be straight and uni- form, but not emanating from or near the point of union with the stock. ypPlQUf UBIAR^ rJi^t ORANGE CULTURE. 25 Fibrous Roots. — To have an abundance of fibrous roote, an item of great importance, nursery trees uiust be from a loose, dry and moderately fertile soil. Trees from low, rich land are apt to have developed a luxu- riant foliage out of proportion to their roots, as the lat- ter finding food and moisture at hand are not properly developed. High land grown trees do quite as well if transplanted to a low soil, and for high land planting are far preferable to trees from low land. Transplant- ing is also an efficient means of developing fibrous roots. A severed root throws out immediately numer- ous rootlets; transplanting produces the same efliect upon all the roots of the tree. Nursery stocks are trans- planted once or more at an age and time when their growth is not retarded, thus securing an abundance of fibrous roots. A transplanted tree, which has been thoroughly cultivated in a dry, loose soil, will have no lack of fibrous roots. Stock. — The sour orange germanates more readily, grows more vigorously, and is less liable to injury from disease, insect, or frost than the sweet. For these reasons, and on account of its habit of throwing up strong, vigorous shoots, it is generally preferred as a stock on which to propagate the latter. The sweet orange makes a very fair stock, however, and after the trees are budded, and attain the proper size for planting in grove, there is perhaps little to chose between them. The lemon, shaddock, and other strong growing species, are too tender to use for stocks, except in the extreme southern part of the State. Method of Propagation. — Although the orange can be grafted or layered, it is generally propagated by budding or from the seed. In common with other fruit trees the varieties do not reproduce themselves from the seed. Budding is, therefore, the only way of obtaining 26 MANVILLE'S TREATISE ON the best, or indeed any particular variety. Were this its only advantage it would be a sufficient reason for discarding seedlings altogether. In practice, this is gen- erally done, few seedlings being now planted in grove. Still, as the latter are advocated by some, a word upon the well-worn subject of budded trees vs. seedlings will be pardoned. As we have seen, budded trees bear, as soon as they are large enough, fruit of a predetermined quality ; while it takes certainly twice, probably three times as long for the seedling to reach the age for pro- ducing fruit, which is good, bad or indifferent, as the case may be, and the probability is it will be mediocre, in quality, possibly decidedly inferior. This loss of time is a matter of no small importance to the grower, es])ecially as there is no compensating gain. The low, spreading head of the budded tree, with few thorns and interior limbs, is a far more desirable shape than the tall, compact seedling, with its interwoven branches and armament of thorns, rendering culture unpleasant, and the gathering of the fruit from the topmost branches a hazardous undertaking, to say nothing of the loss of fruit from being punctured by thorns. Some claim that budded trees grow smaller, and are, therefore, less desirable than seedlings. Even were this true, and it is an undetermined question, it would really be an ad- vantage, as the same quantity of fruit could be pro- duced by closer planting, and the care of the trees and the gathei'ing of the crop would be more easily accom- plished. The most weighty objection that has been urged against budded trees is that they are compara- tively short-lived. The analogy of nature would seem to bear out this conclusion. As a general rule, those plants and animals which arrive at maturity early are proportionately short-lived. The orange is, however, a tree of great longevity, and even if budded, trees are ORANGE CULTURE. 27 somewhat shorter lived, a fact that remains to be dem- onstrated, the difference is so inconsiderable as to be practically of little consequence. In Europe, where budding is the exclusive method of propagation, trees are to be found several hundred years old. In this State, budded groves, which were bearing when killed to the ground by the great frost in 1835, are still thriving, with apparently undiminished vigor. It should be borne in mind that by simply planting bud- ded trees, good fruit is by no means secured. Inferior fruit is quite as easily propagated by budding as fruit of a better quality. The important point is to have the trees of a really superior variety. CHAPTER V SELECTION OF VARIETIES. :5^UCCESS in orange culture comprises: First. — The early and healthy maturity of the trees. This necessitates congenial location and soil; careful selection of trees as to size, mode of propagation, and thrift, and correct methods of treat- ment. Second. — An abundant crop commanding the highest market price. Which involves all of the above condi- tions with this important addition, the variety must be of superior quality. Leaving out this one consideration and however vigorous and prolific the trees, the success is but partial — neither in perfection of fruit nor finan- cial return is the best result obtained. Just here a vital mistake is often made. It may be asked : Is the selection of a so-called superior variety a guarantee that the fruit produced will be of superior quality? In other words do not many trees of the Magnum Bonum, Homosassa and other approved sorts produce inferior fruit? It is true that trees of the best varieties under unfavorable condi- tions produce fruit of comparatively inferior quality, inferior perhaps to a really ordinary fruit growing under more favorable circumstances. But the superior variety possesses inherent capabilities of development entirely wanting in the inferior sort. Proper treatment will encourage the one to produce fruit of an excellence ORANGE CULTURE. 29 which no amount of high culture could obtain from the other. A superior variety produces the best possible fruit under the circumstances, and if the grower fails to supply the conditions necessary to its most perfect development it cannot be reasonably adduced as evidence of its wanting in excellence. Again it may be asked : Of what use are varieties which cannot be distinguished the one from the other, as is the case with many of the im- proved sorts? It is quite possible that fruit is produced in many localities equal to those varieties which have been named and described, but there is no way for the grower to ascertain this fact ; as the former have only been tested in particular localities whereas the latter are of superior excellence as compared with the best production of the State. It is of the utmost importance that the fruit pro- duced be superior as it is now rated in market strictly according to quality. "An orange is an orange" no longer. It is of little moment to the grower whether his fruit is sold as Magnum Bonum or Horaosassa or not, but it is of the utmost im )ortance to him that his fruits brings the highest price in market where fruit of superior quality brings double the price of inferior fruit as at present. Again, there are varieties which are and always will be sold by name. Fruit of the Early Ob- long variety shipped from the w'riter's vicinity last Sep- tember and October brought the highest price obtained during the season, solely on account of its earliness, as the better varieties of mid-season fruit were really su- perior to it in quality. The Du Roi on account of its excellent quality and peculiar appearance brought a higher price than first-class fruit without distinctive marks. Navel oranges shipped by the writer averaging one hundred to the box brought fifty cents to one dollar per box more than the best fruit of other sorts,, which averaged one hundred and fortv tc one hundred 30 MANVILLEis TREATISE ON and sixty to the box. The Bijou Mandarin sold for seven dollars and a half per box upon the trees when other varieties were bringing two dollars and a half. The latter may indicate a fancy and unstable demand, but the other cases men- tioned indicate the normal condition of the market. Many other instances of like character might be adduced in demonstration of the same point. In planting for profit a person unacquainted with the many sorts might have some difficulty in choosing intelligently. The following hints on the relative merits of the principal varieties of the orange may serve to pre- vent confusion and to facilitate selection. A complete classification and description of the species and varieties of the citrus as grown in Florida appears in the appen- dix to this work, to which the reader is referred for more particular information regarding the different species and their several varieties. The Sweet Orange. — This species has many varieties and some have claimed that their peculiarities of size, form, color, and habit of growth, result mainly from soil, cultivation, etc. From the following this will be seen to be erroneous, there being many leading varieties which have distinctive characteristics, and numerous others which, though differing little from each other, are vastly superior to the average Florida product of no special variety. The Early Oblong or Thornless Bell and the Egg, are, strictly speaking, the only early varieties we have. They are sweet but somewhat insipid and rather inferior as compared with some of the mid-season varieties. They are desirable, however, as they reach their perfec- tion before any of the other varieties are fit for use. Their juices are matured in September and October, and if gathered at this season, properly "colored up" and ORANGE CULTURE. 31 shipped, iliey bring a high price, as they reach market before foreign or domestic fruit begins to come in. The fruit has a tough rind, there is little or no loss from cracking on the tree, and it comes off before there is danger of its being injured by frost; the tree is thornless and prolific ; it may therefore be regarded as a good sort for general planting. The Oblong is the best for mar- ket and the Egg, which is smaller and rather more juicy, is preferable for home use. The Tardiff is the best late sort. In appearance it does not differ materially from other first-class Florida oranges of the common type. When other varieties ripen it is tough and acid but becomes tender and sweet later in the season, remaining in perfection on the tree far into the summer, on which account it is desirable. The Navel, in quality, is beyond comparison the finest fruit now grown in Florida. It is always distinguish- able by its peculiar mark, which, in market, prevents deception and confusion regarding the genuineness of the variety. This peculiar umbilical formation also prevents the cracking of the fruit so common with most other varieties. This variety possesses, in fact, every desirable quality in both fruit and tree, excepting that the latter is not as prolific as some other sorts. It is, however, by no means as shy a bearer as some have claimed. As the fruit is unusually large and heavy, bringing on account of its quality, a higher price for a given bulk or weight than other sorts, it is, notwithstand- ing its somewhat shy habit, one of the most profitable varieties. Of the distinctly marked varieties, the Du Roi, a ribbed fruit of medium size and very prolific, and the Bell, a bell or pear-shaped fruit not to be confounded with the Early Oblong variety, have been long fruited in Florida and are of excellent quality. Like the above 32 MANVILLE'S TREATISE ON their peculiar characteristics will always distinguish them in market. The Mediterranean Sweet, in the shape of the tree, its strong vigorous habit, entire absence of thorns, peculiar, luxuriant and beautiful foliage, is all that could be de- sired, and in these particulars superior to most other varieties. The same is true of the Jaffa, a variety of re- cent introduction, which promises well. The Mediter- ranean Sweet was introduced from California, where it is esteemed one of the best. It has been fruited to some extent in this State. Thus far it has proved an early and prolific bearer, the fruit being of an excellent quality. Many trees are being planted, and it is proba- bly destined to be a great favorite. The Blood has not been fruited long enough in the State to determine its market value, though most growers plant a few trees. Charley Brown is very distinctly marked in fruit and foliage ; like the above it has not been fruited long enough to determine its value for general culture. The Sweet Seville and St. Michael's, though not as dis- tinctly marked as the foregoing, are distinguishable by the appearance of the fruit ; the former is one of the most delicious for home use, though too small for profit- able shipment ; the latter is prolific and a good average fruit. Acis, Arcadia, Beach's No. 3, Creole, Dummit, Dixon, Excelsior, Homosassa, Higgins, Magnum Bonum, NoNPARiEL, Osceola, Old Vini, Peerless, Tahiti, Spratts, Harmon and Parson Brown, comprise the lead- ing varieties of the common Florida orange ; they are mainly native varieties recently brought to public notice by the Nomenclature Committee of the Florida Fruit Growers' Association, together with a few of foreign origin long grown in the State. Those in ORANGE CULTURE. 33 SMALL CAPS ars best known and most highly esteemed. In quality they rank next tn the Navel, the greatest objection to them being their thorny foliage. All the above varieties are similar in appearance, the difference, if any, being too slight to distinguish them in market and of little importance to growei-s generally. This multiplication of varieties differing little in character would seem at first to be useless, confusing the grower and burdening the nuseryman; in fact, however, they serve a good purpose, placing a superior variety within the reach of all and being a safeguard against the num- berless inferior sorts. While, therefore, it is immaterial in planting which of these be selected, it is highly im- portant that a well-known, accredited variety be chosen. Botelha, Dulcissima and other recently imported varieties have not been fruited long enough in the State to determine their qualities. The Maudarin or Tangerine Orange. — This species of all the citrus tribe is the most delicate and aromatic, though scarcely as luciousas the Sweet Orange of Flori- da. On account of its beautiful shape, color and the ease with which the rind and segments separate, it is highly esteemed as a dessert fruit. Comparatively few ^ are shipped, and these bring an enormously high price. The effect of increased production consequent upon the ^ large number being planted remains to be seen. The trees are hardy and prolific. There are two distinct classes. The first, dwarfed, willowed leaved and yellow fruited ; of this class there are many inferior seedling varieties which have occasioned a prejudice against it in some localities ; the trees can be planted much closer than the Sweet Orange. The second, full sized, large leaved, crimson fruited ; much prized on account of its color. The China and St. Michael's of the former class and the Bijou of the latter are superior varieties. 34 MANVILLE'S TREATISE ON The foliage of the Satsuma differs from either of the above; the fruit resembles the Bijou in appearance, though more juicy and possessing a distinct and delicious flavor. It seems to stand more frost than the other varieties of the orange. Though of recent introduction, many trees have been planted and it promises to be a favorite. The Bitter Orange. — This species is not cultivated for market in Florida. It is largely grown in Europe, where the fruit is preserved, yielding the celebrated orange marmalade. The rind dried forms the orange peel of commerce ; an essential oil is obtained from the leaves and fruit, and a delicate perfume is made from the flowers ; both fruit, leaves and flowers are much used in medicine. The Sour and Bitter Sweet varieties are found wild in Florida ; they are valuable fruits, and a few trees should find a place in every grove. They are an ornamental tree and the plants make the best stocks on which to propagate the Sweet Orange. The Sour makes a fine preserve and has been used to some extent in this State for the manufacture of mar- malade. Its acid juice makes a refreshing drink, especially grateful in summer when lemons are scarce. The Bitter Sweet is a good substitute for sweet oranges after the latter have been gathered, as, like the Sour, it retains its perfection on the tree through summer. The grain of the pulp is tender and sweet, and when carefully removed from the bitter inner rind and membranes, the better varieties are very agreeable to the taste. There is a local market for the fruit in summer. CHAPTER VI. SEASON FOR PLANTING. HE BEST TIME.— The deciduous fruit trees of more northern latitudes are entirely dor- mant during a considerable portion of the year, at which time they can be safely handled. Most semi-tropical fruit trees, however, are evergreen and must be moved when growing, still there are seasons when this can be done to much better advantage than at other times. Orange and other citrus trees should be transplanted in winter when, though their foliage is green, they are not actively growing. Some seasons small trees can be successfully transplanted in the rainy season of summer, but it is better to defer it until wintei*. They can be safely moved from the time they cease growing in the fall — usually in November — until they show signs of starting in spring. January is the best month; in the northern part of the State, where it is desired to defer planting until danger of severe cold is over, the first ten days of February will do. Decem- ber is a better time than the latter part of February, and November is far preferable to March or April. Owing to the danger of late frosts in the northern part of the State* some have recommended planting in March and April. This is a mistake, as during these months, which are usually dry, the trees are full of sap and making the most vigorous growth of the year, in fact, no more un- favorable time could be selected during the year than 36 MANVILLE'S TREATISE OIV these spring months. The trees generally commence growing in February and should never be dug after the fifteenth of this mouth. Many trees ai*e lost annually by being transplanted too late ; dug from the open ground when full of tender growth, perhaps transported some distance, planted in the warm weather of a southern spring, they must suffer severely if they do not die. Even if dug before they commence growing and " heeled in " until planted, they have to endure the heat and drouth incident to this season of the year ; while if planted earlier, new roots would have formed, and the trees been ready to begin their spring growth at this season. Late Planting. — If late planting is unavoidable, the trees should be dug before they commence growing and " heeled in " in a building for the purpose, or other suitable place where temperature, light and moisture can be controlled, and here kept dormant until the time when they are to be planted. In the " heeling-in house," if jjroperly made, low temperature and absence of light prevents the trees from putting on new growth, while abundant moisture keeps them in perfect condi- tion. If planted as soon a^ dug, the tree must sustain itself until new rootlets form, and if late in season, has heated atmosphere and dry ground to contend against. If heeled in properly, the severed roots heal and new feeders are formed while the foliage is not drawing upon the vitality of tree, the plant is thus prepared to absorb food from the soil and begin growing as soon as set in the ground. CHAPTER VII. DISTANCE APART. 'IZE OF THE TREES.— The general opinion has been heretofore, that sweet seedlings grow larger than budded trees, and budded trees on sweet stocks than those on sour ; and that the distance between the trees in grove should be more or less, according as one or the other of these were planted. This conclusion may have arisen from the dwarf habit of some of the varieties propagated by budding, or from the fact that seedling^ are larger when they reach the bearing age than the budded trees, after which they grow faster than the latter. Budded trees bear younger and smaller than seedlings, and their energies being thus early directed to making fruit rather than wood, their sub- sequent growth is much slower than the latter, whatever may be the size they ultimately attain. Some of the largest trees in the State are budded on sour stocks, and it is questionable whether there is any considerable differ- ence in the size of the mature trees. However this may be, it is of no great consequence, as seedlings are being generally discarded by more progressive growers, and there is too little difference if any between the size at- tained by trees budded on sweet and those budded on sour stocks to make any difference in the distance which should separate them in grove. The orange under favorable circumstances grows to a very large size. The branches of some isolated trees are forty feet or even 38 MANVILLE'S TREATISE ON more in diameter. In general planting, they are set from twenty to thirty feet apart, according to the location or the fancy of the grower. lu the Northern Part of the State. — In the ex- treme north, where the trees suffer from cold in winter, they should be set as close as 20x20 feet ; at this dis- tance the foliage soon forms an efl&cient protection from frost. On Low Lands. — On low lands, where the soil is in- frequently cultivated and seldom stirred, it is impor- tant that the surface be shaded as much as possible. The nearer together the trees are the sooner they will accomplish this object. Twenty by twenty feet is not too close, especially as trees on low land do not attain as large size or great age as on higher land. On High Lands. — On high lands in the central and southern portion of the orange growing region, varieties, not dwarfish in tendency, should be allowed more room. Twenty-five by twenty-five feet is not too great a dis- tance where the trees are to be planted in squares, and even where planted 30x30 feet they will ultimately occupy the space. A very good plan is to lay off the rows fifteen feet apart each way, and to set a tree at each alternate intersection of the rows as laid off. This leaves the rows fifteen feet apart, the trees thirty feet apart in the row and twenty-one feet from each other in squares running diagonally across the rows. This gives about one hundred trees to the acre, and should they ever be- come crowded, by removing every other row, they will be left thirty feet apart in regular squares. Some varieties do not grow as large as others ; those less vigorous in growth or of small size can be set from twenty to thirty feet apart as the case may be. Where dwarf trees or other fruits are planted between the rows, the standard trees should be at least 30x30 feet apart The willow- ORANGE CULTURE. 39 leaved varieties of the Mandarin do not grow as large as other varieties of the orange, and when planted by themselves, can be set as close as 15x15 feet. Dwarf Trees. — If the efforts now being made to dwarf the orange prove permanently successful, and the experi- ments already made certainly promise well, the dwarf trees can be planted betwen the standard trees in the grove, or will form a grove in miniature if planted by them- selves. As they require so little room, gardens and other areas too limited for standard trees can be thus utilized for orange culture. For an account of the experiments which have been made in this direction see article on " Dwarfing the sweet orange " in the appendix to this volume. How to Ascertain the Number on an Acre. — The following rules are given for ascertaining the number of trees or plants that can be set on an acre: First — When they are set in the common order, that is, in the form of squares or rectangles. Rule. — Multiply the distance in feet the rows are apart by the distance apart in the row, and divide 43,560 — the number of square feet in an acre — by the product. Example : How many trees, twenty feet apart each way, can be set upon an acre ? Solution: Twenty multiplied by twenty equals 400, or the number of square feet each tree will occupy ; 43,560 divided by 400 equals 108.9, or the number of trees. Second — When set in the quincunx order, as in the diagram : ^ B C E A D Rule. — Multiply the distance apart in feet in the row 40 MAXVILLE'S TREATISE ON {from A to B) by the distance apart and diagonally {from A to E) ; multiply the product so obtained by .866, and divide 43,560 by the product last obtained. Example : How many trees, twenty feet apart each way, can be set in the quincunx order on an acre ? Solution : Twenty multiplied by twenty and the pro- duct multiplied by .866 equals 346.4, or the number of square feet each tree will occupy ; 43,530 divided by 346.4 equals nearly 123, or the number of trees. Note I. — Half the distance from A to D may be found by multiplying the distance from A to E by .866. Note II. — The tree at E should be in the center of the rectangle formed by those at A, B, C and D. CHAPTER VIIL PLANTING, ^|» ULL directions for preparing the soil for a grove appears in a former chapter. The fol- lowing suggestions on planting are given un- der the supposition that these have been com- plied with. Handling the Trees. — As soon as the trees are dug or received from the nursery they should be "heeled in" in a cool, damp, shady place, or in other words, they should be buried in a slanting position and covered with eai-th up to their lower branches. In winter they can be kept safely in this manner for weeks and can be set out at leisure. It is very important to the welfare of the trees that they be kept from sun and wind, and that the roots be kept damp from the time they are dug in the nursery until they are planted in grove. When the trees are to be at all exposed before or during planting it is a good plan to protect the roots by dipping them as soon as pruned in a thin mud made of rich soil. Before planting, the broken roots should be removed with a sharp knife and the branches cut back fully half their length. This rule applies to young budded trees with regularly formed tops. Other trees should have their top cut back in about the same proportion. In dealing with trees that have not been systematically pruned, or which have irregular shaped tops the grower will have to use his judgment, as no definite rule can be given 42 MANVILLE'S TREATISE ON for such cases. The main stem of the tree should never be severed below the last season's growth as there is noth' ing gained by it and the tree will require some time to recover from the shock. The length of the tap root iS' a matter of no great consequence; from eight to twelve inches upon trees two to four years old is sufficient for all practical purposes. A new tap root, or rather roots will soon be formed if the tree needs them in its new position. When possible the " cutting back " or prun- ing should be done as soon as the trees are dug from the nursery, as the juices are constantly evaporated through the foliage so long as it remains upon the tree. Preliminaries. — After the land has been properly staked off in the form desired, repeated sighting can be avoided and the trees be accurately set by the aid of the following simple device. Take a board long enough to reach across the place to be prepared for the tree, cut a notch in one side opposite the center, and two holes through it, one at either end, as in the following illustra- tion : 0^ A ^0 A represents the notch in the side and B B the holes through the ends. Place the board on the ground with the notch (A) against the stake which marks the place for the tree, and drive two short stakes or pegs through the holes (B B) in the ends of the board. The board can now be removed and the soil be prepared for the recep- tion of the tree. When the tree is placed in position and the board put over the pegs again, the collar of the tree can be adjusted to fit the notch, thus bringing the tree into exactly the same position occupied by the stake which marked the place for it. It pays to take pains in laying off the ground to have each tree in its proper ORANGE CULTURE. 43 place. It is but little more trouble to have the rows straight and they are much easier cultivated and will always be a source of satisfaction. Holes for the trees are not necessary, and when dug to sweeten and pulverize the soil where the general sur- face has not been properly prepared, they should be filled in long enough before the trees are planted to allow the earth that has been removed to become moist- ened through again. The places where the trees are to be set, should be thoroughly pulverized with the spade and hoe, and rounded up a little above the general level. Setting Out the Trees.-When ready for planting, the tree should be placed in position, and holes hollowed out for the tap and lower lateral roots deep enough to allow the upper layer of lateral roots to spread out on the surface. Moist earth should be pressed carefully and firmly about the roots with the hand, giving them as nearly as possible their former positions, especially the rootlets and fibres. Cover with more earth than it is intended shall remain, taking care not to pile it up around the collar. This extra earth serves to keep the roots moist until new rootlets are formed; when the tree commences growing it can be drawn back from the roots. The entire mound thus formed should be covered with a mulching of straw, grass or litter, and the work is finished. This mulch should not be disturbed until the tree begins to grow, but if weeds or grass grow through it they should be removed. Watering.— Damp weather is, of course, preferable. Still, the trees can be set with safety any time during the transplanting season, at which time the trees are dor- mant and the weather cool. A moist soil is a great ad- vantage, as it obviates the necessity of immediately or subsequently using water. The use of water while 44 MAN VILLE'S TREATISE ON planting hinders the operation ; but if the ground be dry it should be plentifully applied when the work is finished. Frequent watering after the trees have beens set, excej^t in cases of severe drouth, is to be depreca- ted; it makes considerable unnecessary labor, and is of questionable advantage to the tree. It produces a growth dependent upon this water supply, renders the trees more sensitive to extreme heat, and when once be- gun they suffer if it is not kept up. If very dry "Weather renders watering necessary, the ground should be thoroughly saturated, and a& long intervals as possi- ble allowed to intervene between the applications. Deep Planting. — Although a great deal has been 8aid and written against deep planting, it is still the cause of much loss and failure in orange culture. It is a pro- lific source of disease and if the tree survives there is little prospect of its ever becoming vigorous. In its normal condition the large brace roots of the orange tree protrude above the ground at the collar and should still be exposed when the tree becomes established in its new position after being transplanted. The trees will settle considerable after being planted, and should therefore be set several inches above the surface ; even higher on low land, where it is best to plant them on beds thrown up for the purpose. Trees suffering from being set too deep should be raised at once. Large Trees. — In transplanting large trees there is much less risk if they are not pruned some time before their removal. This is done for the same reason that small trees are transplanted, r. e., to produce a growth of fibrous or feeding roots. They should always be moved in winter and the proper time for pruning the roots would be the previous spring or summer. The trees are not shocked so much, if one side be taken at a time. Sufficient time should intervene between the operations on the different ORANGE CULTURE. 45 sides, and between pruning and planting to allow the fibrous roots to perfect their growth. The most conven- ient instrument is a sharp spade. A trench should first be dug around the tree at a distance ranging according to its size age and other conditions, and deep enough to bare the lateral roots; then with a quick stroke the roots are severed at both sides of the trench to the depth of the spade, the pieces of roots thus detached are re- moved, the trench filled in and the work is done. The removal of a portion of the severed roots gives the new rootlets a better chance to grow than if the laterals were simply cut and allowed to remain in their former posi- tion. Care should be taken in moving trees whose roots have been pruned that the new, fibrous roots are not in- jured, on which account digging should be commenced at some distance from the line of pruning. In other particulars large trees require the same treatment recom- mended above for smaller trees. CHAPTER IX. culture, CULTIVATION. HERE is more difference of opinion regard- ing cultivation than perhaps any one point in orange growing. Deep culture, shallow culture, clean culture, cropping, constant nfrequent culture, partial culture, sum- mer shading by a green crop, and mulching a part or the entire surface, are variously advocated with ap- parent reason, as each is applicable under some condi- tions. Some of these methods produce good results only in isolated or exceptional instances, others succeed on certain classes of soil, while others have a general appli- cation. More intelligent growers follow a uniform sys- tem modified to suit the circumstances of soil, loca- tion, etc. Deep CultlU'e. — Deep culture does not seem to be injurious on some high, light soils, and in some places where a light, poor top soil is underlaid with a rich sub- soil several feet below the surface ; in fact the trees seem to do better when cultivated deeply. Where deep plowing is to be practiced it should be commenced when the trees are small and followed uninterruptedly to keep the soil aei-ated and porous above the roots, and to pre- vent the latter forming within reach of the plow share. It will not do to alternate between deep and shallow culture, nor to plow up the roots after they have become established near the surface. ORANGE CULTURE. 47 Shallow Culture. — Shallow culture is generally the best method, as there are few soils where deep culture is not injurious, and fewer still where it is beneficial. The orange is a surface feeder, and the soils of Florida are not deep and as a general thing do not harden or bake. There is no reason therefore for cultivating deeply, fre- quent shallow stirrings of the surface being all that is necessary to keep the soil mellow and the trees growing. Infrequent or Partial Culture. — This method is advocated and practiced by some who recognize the benefits of shading the ground in summer, or observe that some low lauds require very little stirring. Ac- cording to this plan, the soil is stirred but few times dur^ iug the year, generally in the spring and fall, or the area work is confined to a limited space about each tree. Upon some poor soils producing little but coarse weeds, which have to some extent the efiect of a green crop, and where the spring and fall working has been very thorough, this has succeeded passibly well among large trees, but it will not do among small trees. As a rule, however, except on low lands, this is a pernicious practice. When covered with a green crop or mulched, the surface becomes porous and friable, which conduces to the health and growth of the trees ; a natural grow' th of weeds and grass does not answer the same purjjose, but on the contrary renders the soil compact and firm, and absorbs the moisture and nutriment which would otherwise nourish the trees. It is a poor policy to re- duce the cost of cultivation to a minimum from motives of economy, thereby loosing the gi'ow' th the trees would otherwise have made even if they suffer no apparent in- jury. The orange will stand much abuse, but the best results can only be protluced by projier and thorough cultivation. 48 MAXVILLE'S TREATISE ON The Suspension of Cultivation Late in Summer — to check the growth of the trees and allow them to ''harden up" before cold weather, is open to the same objections as the foregoing. If allowed to stand in grass for so long a time the vitality of the tree is im- paired, and though active growth may be checked, the wood is not matured as perfectly as it would be if the trees were kej^t in full vigor ; in this condition they are more liable to injury from frost or disease. On rich soils, a heavy sod is formed by spring which is trouble- some and difficult to break without injuring the roots of the trees. The spring growth of the trees, which should be the most vigoi'ous during the year, is thus interfered with, and the trees rendered more liable to grow late in the fall. If early culture has been indifferent, or late culture is unusually thorough, this sudden change in the method of treatment may force the sap into the trees, which at this time of year would prove disastrous to them in case of severe frost. If properly cultivated through the season the trees will put on and mature the several growths which they should make through the summer, each in its proper time. Sufficient stirring in the fall to keep down the herbage, which does not grow very rapidly at this season, will not prevent the trees from ceasing active growth as cool weather approaches, which is their natural habit. Warm spells in winter often cause new growth to start out on the trees. Sus- pension of culture makes no difference in this particular, and the most thrifty trees will sustain the least injury. In the more northern counties it is perhaps necessary to resort to some measure to check the circulation of sap in winter. Where this is necessary, seeding the land in oats is a more efficient and less objectionable method of accomplishing this result than allowing the natural growth to take the ground. As a general rule it is bet- ON ORANGE CULTURE. 49 ter to keep the land free from grass and weeds the year round. Summer Sliadiiig- by a Green Crop. — Clean, con- stant culture in summer is not advisable. When stir- red at this season, in dry weather, the powei-ful niid-cUiv sun renders the earth as hot and dry as an ash heap ; it often remains in this condition through the night, and is still hot a few inches below the surface in the morning. This parches the roots of the trees and prevents their growth. Summer shading by a green crop is a much better plan. Pease or other similar crops planted late in spring will cover the ground through the summer, forming a complete protection from the rays of the sun. They should be planted in hills or drills and cultivated until the vines take the ground, when they will form a •good mulch, keeping the soil cool and mellow and pre- venting other growth. They draw little from the soil, and if desired, the vines can be used for fertilizing or mulching the trees and a second crop raised for seed. Cropping. — When the trees are small any crop can be grown between the rows, which does not require til- lage, without interfering with the proper cultivation of the trees. Care should be taken not to plant too near the trees and to contract the area — planted as the roots of the tree extend. A summer crop of melons or other vines will shade the surface as recommended above. Garden vegetables are usually raised for profit in fall and spring ; when this is done pease or other crops can be grown for summer shade, the same as when clean cul- ture is followed at other seasons. While cropping is ad- raissable, it is far better to cultivate solely with regard to the trees'; any other crop is to a greater or less ex- tent a hindrance to this. * Other Fruits. — Other fruits adapted to the climate, which are dwarf in their habit or short lived, can be 'n 50 MANVILLE'S TREATISE ON planted between the rows, as it will be some years before the orange trees occuiDy the same space. Limes, and other dwarf species of the citrus, guavas, pine-apples, bananas, grapes (excepting the scuppernong family), peaches, etc., can thus be grown where the climate and soil is adapted to their several requirements. Best Methods on High Laud. — The cultivation of high lands and all light, dry soils should be continued from the time the grass and weeds start in spring until vegeta- tion dies in the fall, say from February until October. The surface should receive frequent shallow stirrings, the object being as much to keep the soil loose and porous as to subdue the weeds and grass. This can be done with either sweep, horse hoe, or cultivator. These im- plements are now constructed to run very shallow with special reference to orange culture and so adjusted that the depth can be regulated at will. When possible some green crop should shade the ground in midsum- mer as described above. Most soils left in good condi- tion in October will require no further working until spring. In the southern pait of the State and on some rich lands there is considerable growth during winter; where this is the case the surface should be cultivated lightly, often enough to keep down the grass. If it is necessary to commence cultivation in spring by turning over the surface with the plow, it should be done as lightly as possible, running shallow and taking pains where there is danger of disturbing the roots. Best Methods on Low Lands. — Low land culture should be very different from high land culture ; thus far this chapter applies especially to the latter, if what follows seems contradictory, it should be borne in mind that methods admirably adapted to high or light, dry soils are absolutely injurious on low land. The lateral roots of the orange tree, naturally near the surface on all ^" UBRA^V, M^oa of thi^st^s< ORANGE CULTURE. 51 soils on low lands, are necessarily so owing to the prox- imity of water below. It would be very difficult to cul- tivate as required on a light, dry soil without injuring or preventing the formation of surface roots. Low soils are often soaked from rainfall at the season when grass and weeds gi'ow fastest ; if stirred in this condition the grass is not killed, and the hot sun injures the soil as well as the roots of the trees. The best method on such soil cannot be better indicated than by the following quotations from two of the most successful growers on this class of land. Mr. J. T. Tenney, of Federal Point, says : " When first set, small trees may be worked with a plow, being careful not to plow too near, but when the trees attain any considerable size, the plow or even the cultivator should be discarded and the grove cultivated with the hoe alone. Be careful not to cultivate your trees during the midsummer months, but let grass and weeds grow as much as they will, for the reason that the roots being near the surface, the disturbance of the soil about them brings the heated earth to the roots protluc- ing death to them and ' die-back ' to the tree. Some say : ' Why not use the plow instead of the hoe if it be run shallow? ' Because the hoe even will reach some of the roots, and where it does so it cuts them off clean while the plow would simply tear them up and produce disease and decay clear to the body of the tree." Mr. E. H. Hart, of the same place, says : " To insure suc- cess, the trees must be planted on raised beds with water furrows between, and the ground scraped over lightly but once or twice in the season. Under deep or fre- quent culture the trees would become diseased and perish from * die-back.' " Low lands are generally strong and the trees keep growing even if the ground becomes foul, but it would be much better to keep the growth down if it could be done without stirring or ex- •*^:?;.:>'^. 52 MANVILLE'S TREATISE ON posing the soil and roots to the sun. This result is ac- complished by mulching the trees. Muldlillg. — As mulching is applicable to high as well as low land, and is a subject of considerable impor- tance, its consideration is reserved for another chapter. CHAPTER X MULCHING. TS ADVANTAGES.— Pulverizing the sur- face by frequent stirring, or shading the ground with a green crop, is, in effect, mulch- ing ; and an orange grove can be successfully produced by these methods alone. But mulching, as commonly understood, that is to say, the covering of the surface with dead vegetation, is too important an auxil- iary to be ignored. It is the natural method; the an- nual falling and decay upon the surface of leaves, grass, and other vegetable products, is nature's way of shading, protecting and enriching the soil. Mulching keeps the soil moist and mellow, shades the ground from the sun, and preserves an even temperature, which are the con- ditions required to produce a vigorous and healthy growth of the trees ; and at the same time it obviates the necessity of culture, and supplies all the fertilizers needed on the space it covers. Its value as a means of culture is being more and more appreciated by orchard- ists throughout the country. Some theoretical objec- tions have been urged against its application in orange culture, but the extensive experiments of the last few years have, when properly conducted, pronounced in its favor. Mulching undoubtedly benefits the trees, and its practicability, in any particular location, depends only upon the availability of the material and the ex- pense of its application. 54 MANVILLE'S TREATISE ON Its Application. — Dry grass, weeds, straw, pine needles, wire grass, marsh grass, the undergrowth of the pine woods, bagasse, and other like litter are used for mulching. Those that do not decay too quickly, and that make the best fertilizers when decayed, are most desirable. Rotten bark, rotten wood, and similar sub- stances, which will soon decay and help to enrich the soil, can be added to the mulch when the latter is to be applied constantly, in which case, as the mulching is not to be removed, they will not interfere with cultivation. They should be placed on the outer edge of the mulch, or at some distance from the tree, as they are liable to harbor wood-lice or other insects, which would do dam- age if these substances came in contact with the tree. The depth of the mulch required, depends on the char- acter of the soil; it should be thick enough to keep down herbage of all kinds. From three to five inches is usually sufficient for this purpose. It should be spread when the ground is moist — winter being the most favorable season, though it will do no harm if applied at any time. An uncovered space of several inches, and if the trees are large, of several feet, should be left around the stem of the tree to admit air and light to the collar. As a general rule, the more space covered with mulch the better. Where the trees are small, however, it is seldom practicable to cover more than a limited area around each tree ; where this is done it should ex- tend a little beyond the extremities of the roots. Where a portion of the surface is mulched, the remainder should be cultivated in the usual manner as recom- mended in the last chapter. Larger trees shade a por- tion of the ground themselves, the undergrowth is more easily subdued, and the same amount of mate- rial will cover a much larger area. In bearing groves, where it is difficult to apply fertilizers or cultivate in ORANGE CULTURE. 55 the ordinary way without disturbing the roots, mulching obviates the necessity of this, and aiFords the trees just such a fertilizer as they need at this age. In some groves of this character the entire surface has been mulched with great advantage. The same is true of groves which have been budded upon wild trees, where the roots are already established near the surface. Mulching is adapted to all soils, but is especially valuable upon high, poor land, where it not only acts as a fertilizer, but also protects from sun and drouth ; it is even more so on low, heavy land, where the roots, which cannot penetrate deeply, are protected near the surface. Speaking of methods of low land culture, E. H. Hart says : " For heavy lands, a good mode of treatment is to mulch the rows lengthwise for a width of six feet, and in May or June plant the middles with cow peas, which should be kept clean until they cover the ground." Objections Cou.sidered. — Those who oppose mulch- ing, claim that it is expensive, draws the roots to the surface and renders small trees more liable to be killed by cold. Where there is abundant material at hand, as there is in most places in F'lorida, it costs less to mulch than to cultivate and fertilize the same space in the or- dinary way. Mulching does not attract the roots from their natural position, but rather protects and nourishes them near the surface where they belong. Mulching will not render trees of any considerable size more liable to injury from cold, and does not seem to make any difference even where the trees are small. If this should be the case in the extreme north, it can easily be avoided by raking away the mulch during the cold months. The following is from the pen of an experienced grower : " It has been urged that mulching makes an orange tree tender and more liable to be killed by a freeze. 56 MAXVILLES TREATISE ON " Believing a statement of this kind, I was kept from mulching for nearly three years. Then I only began by a trial on a few trees at first. I am satisfied by careful experiment and observation that no harm can come to trees on that account if properly applied. Old trees and young trees, trees just set out and trees beai'ing 500 oranges each, have alike been benefited. Trees that were mulched during la.st winter came out of the freeze much better than those that were without mulching. And now during the present dry weather, whilst other trees are becoming yellow and curling the leaf at mid- day, the mulched trees retain a dark green and healthy color, and continue growing ' right along.' " The objection that the roots come to the surface and prevent after culture with the plow or cultivator in con- sequence of mulching is of little force. I do not think trees should be plowed or cultivated where mulch has been or would be applied with advantage. The hand hoe is the only tool I would allow near a growing orange tree, and besides any surface manuring in like manner causes the roots to develop at the top of the ground. The few feeding roots that are cut ofi' in a good hoeing, no more injures the health and life of the tree than a slight pruning of its leaves and branches." ij:i^zj:i^i2^jj^sa:i^^xj^ ^-!u^^L3Li^'i£f3^zs^.j^ "^ CHAPTER XI, FERTILIZERS. UMUS. — "A pulverulent brown substance formed by the action of air upon solid animal or vegetable matter," is the element that gives fertility to all soils. Some scientists have claimed that vegetable growth could be sustained by artificial means upon a soil containing no humus. Al- though this may have proved true in experiments on a limited scale, still there can be no doubt that in practi- cal agriculture or horticulture the presence of this ele- ment is absolutely necessary to the successful produc- tion of crops. Supplying plant food in this form is nature's method, and therefore a practical and efficient method of keeping up the fertility of the soil. " Take into consideration nature's gi-and and universal compost heap. Of what does it consist ? Of every falling leaf, decaying blade, the remains of all insect and animal life ; these falling to the ground and being incorporated with its universal substance, constitute soil. The coloring of the ground extending on our sand hills from one to four inches deep and in our bay heads or around our lakes or ponds to as many feet. On the rich pampas of South America, the fertile valley of the Mississippi — all over the face of the universe where vegetation grows, nature furnishes in death and decay the germ of a new life, or, in other words, furnishes food for the rejjroduction of 58 MANVILLE'S TREATISE ON itself. This food, on our sand hills, in our muck beds, in the Mississippi Valley, all over the world, is identical. This important fact should always be borne in mind." There may be, it is true, such an excess of humus in the soil as will be uncongenial to the growth of plants. Such instances in Florida are extremely rare, however, the soils of the State being, as a general thing, especially upon the high pine and other poor lands, deficient in this element. The only fertilization on such soils that will give lasting and satisfactory results is the applica- tion of humus in one form or another. It should be noted that while humus is the product of both animal and vegetable decay, all decayed animal and vegetable matter is not humus. The term is properly applied to this substance only when in the proper pulverulent and soluble condition adapted to vegetable nutrition. Some soils contain a large amount of decomposed or partially de- composed vegetable matter in an insoluble condition not taken up or assimilated by plants. The action of the air converts this material into plant food or humus ; such soils should, therefore, be aerated by stirring and by drainage when necessary. Alkaline mineral fertili- zers are efficient in bringing about this change, as are also animal fertilizers to some extent, owing to the ammonia which they contain. Green Crops incorporated with the soil have long been regarded as effective as a fertilizer or renovator of worn out lands. The plants thus turned into the soil derive their sustenance largely from the atmosphere and rainfall, and return to the soil a much larger amount of plant food (humus) than they take from it. Like all fertilizers, composed largely of humus, they improve the mechanical texture of the soil as well as increase its fertility, an effect by no means unimjiortant. There is no better way of enriching orange lands. Many plants ORANGE CULTITRR 59 have been recommended for this purpose. These are valuable in proportion to the cost of seed, rapidity of growth and the amount of vegetable matter they afford. Cow pease are extensively used and yield perhaps the best results. They should be sown in May or June either broadcast or in drills and plowed in before they commence to run. After they become matted it is diffi- cult to turn them under with a plow. This method en- riches the general surface by distributing the vines evenly through the soil ; it is a good way to prepare the ground for treas, and can be continued for some time while the trees are small. Among large trees the roots interfere with the operation, and it is a better way to apply the vines directly to the trees. For this purpose they should be planted in drills or hills, worked fre- quently until the pods begin to form. At this stage of their growth they are richest in nutrient elements and should then be cut with the hoe. Some advise piling them around the trees and allowing them to rot on the surface, but the better plan is to bury them lightly just beyond the roots of the trees. This keeps the vines moist, facilitating decay and at the same time secures all the fertilizing elements they contain, some of which would escape in gaseous form if allowed to remain un- covered. Where the trees are too large, or for any other reason it is not convenient to grow the pease be- tween the rows, they can be grown else\vhere, and if the roots prevent their being buried, they can be covered lightly on the surface. Succulent weeds, grass and other rank growth carried to the grove and applied green, an- swers the same purpose admirably. Some recommend sowing rye, oats or barley in the fall and turning the same under in spring. Mulching, another and similar method of supplying eO MANVILLE'S TREATISE ON humus to the soil, has been treated at length in the pre- ceding chapter. Muck is one of the principal sources from which, humus is obtained in this State. It is one of the most abundant and valuable fertilizing agencies we have ; it abounds in swamps, marshes, ponds, " bay heads " and along the shores of streams and lakes. In these muck- beds vast quantities of organic matter, partially excluded from the air, has slowly decomposed. The compounds thus formed, contain the elements of plant-food, but in an insoluble condition. For this reason applying muck in a raw state as dug from the ground, is of little benefit to the trees and often really injurious. The only way it can be of any value in this condition is when pulver- ized and incorporated with the soil, it thus affords an abundance of plant-food, but in an insoluble condition, requiring the acticm of tillage and exposure to the sun and air, or the application of other agencies, as lime, etc., to render it suitable food for plants. Muck is ren- dered soluble—the only condition in which it can be taken up by plants — by the action of the .atmosphere. Throwing it up in heaps and allowing it to remain until light and friable, is generally a sufficient prepara- tion when it is to be composted with other materials ; when it is to be applied directly to the soil it takes too long to reduce it in this manner to the proper condition, and it should be treated with lime, ashes, potash, or other alkaline fertilizers. Lime is said to be more effi- cient if slacked in brine. The ammonia of nitrogenous manures acts in the same way — indeed, this qualitj' of absorbing, combining with and retaining in a soluble condition the valuable ingredients of more active fertili- zers is one of the most valuable properties of muck. On this account it is far more valuable combined with other fertilizers or used as a basis for composting than when ORANGE CULTURE. 61 applied directly to the soil. Black sand is sometimes mistaken for muck, with a little practice a purely vege- table deposit is i-eadily distinguished from such worth- less material. Barn Yard Manure, containing, as it does, all the necessary elements of plant-food, has been from time immemorial the staple fertilizer of the farmer and fruit- grower. It is the standard by which the value of all commercial fertilizers are determined. There is no bet- ter fertilizer for the orange. Well-rotted and applied directly to the soil it is an efficient fertilizer. This is not an economical method of using it however. Stable manure and all fertilizers made from the blood, bones. flesh, or excrements of animals, contain an excess of ammonia and other valuable ingredients which escape in the form of gasses during the process of decomposi- tion. Indeed, if decomposition be complete there will be little left but humus. If composted with muck, these elements are not only saved but the muck through their action is converted into plant-food. Thus one load of stable manure, composted with two loads of muck, will make three loads of fertilizer equal to the best barn yard manure. The same is true of other animal fertili- zers to a greater or less extent. Cotton Seed is also a good fertilizer for the orange. The cotton seed meal, if pure, is more valuable than the crude seed, as the former contains more elements of fer- tility than the same weight of the latter. Like other active fertilizers the best result is obtained by compost- ing it with other materials. The above are natural fertilizers. In addition to these, the following mineral fertilizers are used to some extent in orange culture. It should be borne in mind, that while they are often very beneficial, their use is not really necessary, as the natural fertilizers afford all the 62 MANVILLE'S TREATISE ON elements necessary to sustain the trees in perfect condi- tion. They are sometimes applied directly to the soil, but are especially valuable as constituents of the com- post heap. Lime, like other alkaline fertilizers, acts by neutraliz- ing acids, rendering insoluble substances soluble, or by forming new combinations in soils or fertilizers. Nu- tritive elements, existing in soils in a condition not suitable for plants, are thus rendered available. By sweetening " sour " earth, hastening decay and prepar- ing crude elements for plant-food, it forms a valuable addition to soil or compost. It is not, strictly speaking, a fertilizer, as it is not itself taken up by plants. Its effect on soils generally is to impoverish, for which reason it should not be applied directly to the soil, except where it contains a superabundance of plant-food in an insoluble condition as on wet, boggy lands. Its princi- pal use in orange culture is in the preparation of muck. Potash acts much in the same way as lime, but is more valuable as a fertilizer. It scarcely pays to pur- chase the commercial article for application to orange trees, at least until they attain the bearing age. In the form of ashes we have it combined with other valuable ingredients in an available form. Hard wood ashes is one of the best fertilizers for orange trees. Like lime, they are best used combined with muck. Potash or lime should not be combined with nitrogenous manure. " Potash, most available to us in the shape of ashes, should be used strictly as a manure ; but the farmer sliould always remember the property of both ashes and lime of displacing or driving off ammonia. Frequently they will take ashes and lime and combine them in the same compost heap with barn yard manure, chicken- house scrapings, or cotton seed. Knowing that each is good, he naturally supposes the combination excellent, ORANGE CULTURE 63 when, in fact, it destroys in a large degree the value of the other fertilizers. This important element, the ashes or lime, displaces from its proper combinations, and it escapes ; hence the manure is damaged." Phosphoric Acid is perhaps the most important mineral fertilizer applied to the orange. As it enters largely into the composition of the fruit or seed, it is es- pecially applicable to bearing trees. It is derived from raw bone, bone ash, bone black, phospate guanos, etc. In the form of ground bone it can be applied directly to the soil with good effect. But as superphosphate, ground bone, or in other form, it gives the best results when composted. Laud Plaster has been recommended by some as beneficial on sandy soils, absorbing and retaining the volatile manures so easily expelled by our abundant sunshine. The Talue of the Compost Heap the writer has endeavored to keep constantly before the reader in the foregoing pages. When intelligently composted the fertilizing properties of all manures are vastly increased, and valuable elements which otherwise go to waste, are saved. Some valuable manures applied in a crude state are injurious, when composted all such injurious effects are avoided. It also affords an opportunity of utilizing the debris of the farm, animal and vegetable refuse of all kinds should be carried to the compost heap and in this way converted into valuable fertilizers. Muck, where it can be obtained, forms the best basis for the compost. Straw, dry grass, pea vines, etc., can be added with profit. Herbage, cut green, can be added with good eflfect, owing to the nitrogen (ammonia) it contains. Where muck cannot be had, these latter humus-produc- ing substances are especially valuable. The compost heap should be sheltered from the weather and kept 64 MANVILLE'S TREATISE ON moist to facilitate decomposition, and should be turned over or thoroughly mixed occasionally if necessary. It is not ready for use until it is so thoroughly decomposed as to be entirely homogeneous and pulverulent. One of the best ingredients for the compost is barn yard manure. It should be mixed in the proportion of two parts of muck to one of manure. Other animal manures can be substituted for stable manure in about the same proportion. Another combination, which has been highly recommended, is one part stable manure, one part cotton seed (or cotton seed meal), and three parts muck. If the muck is to be treated with ashes or lime, this should be done some time before it is composted with the manure, in order that the latter be not injured by the loss of its ammonia, which these ingredients would occasion. Another way of using muck with stable manure is to place it under the feet of the stock ; it is not only thoroughly mixed with the manure in this way but absorbs the urine, which is the richest portion of animal excrement. Many formulas for composting have been recommended, all of which are good and can be used according to the material at hand. Dr. G. W. Davis, in his excellent " Treatise on the Culture of the Orange," says : " One of the best fertilizers we ever used for the growing orange trees was a compost of muck, hard wood ashes and fine ground bone — three parts mucl'., two parts ashes, and one part bone. Sink a box in the ground sufficient to contain the amount of com- post you desire to make. First, a layer of finely decom- posed muck, then a layer of finely ground bone, then ashes, and so on alternately until your compost is com- plete ; finishing off with a thick layer of muck, moisten thoroughly Avith water, and at intervals of two or three weeks renew the moistening ; when in about three months the solution of plant food will be complete. No ON ORANCxE CULTURE. 65 escape of ammonia will occur while the fishes are dis- solving the bone, as the muck will absorb that as fast as it is developed. Remove from the box, mix thoroughly and you have a complete manure rich in plant food." The Department of Agriculture of the State of Georgia has, in a series of experiments, extending through the past six years, carefully compared a compost of super- photr-phate, cotton seed and stable manure with the best grade of commercial fertilizers. The result has been decidedly in favor of the former. The following formu- las are given in the report of these experiments : •" If the stable manure and cotton seed have been pro- tected from waste by exposure to rain and sun, this formu- la is recommended : Stable manure, 650 pounds ; green cotton seed, 650, and superphosphate 700 pounds, mak- ing a ton of 2,000. If the compost is intended for use on soil particularly deficient in potash, the following formula may be employed : Stable manure, 600 pounds ; cotton seed, green, 600 pounds ; superphos- phate, 700 pounds, and kainit, 100 pounds, mak- ing a ton of 2,000 pounds. These ingredients may be varied in proportions to adapt the resulting composts to different soils or crops, but either of the above is recommended as giving satisfactory results on any class of soils and on all cultivated crops. '' The , ingredients may be mixed either by building up the heap by alternate layers of the ingredients, or they may be thoroughly mixed and then thrown into a heap. In either case water should be freely used on the coarse materials while composting. A plan of compost- ing followed by many consists in spreading under shelter a layer of stable manure four inches thick ; on this sprinkle a portion of the jjhosphate ; next spread a layer of cotton-seed three inches thick ; wet these thoroughly with water and then apply more of the phosphate ; next 66 MANVILLES TREATISE ON spread another layer of stable manure three inches thick, and continue to repeat these layers in the above order, and in proportion to the quantity of each used to the ton, until the material is consumed. Cover the whole mass with stable manure, or sc2*apings from the lot, one or two inches thick. Allow the heap to stand in this condition until a thorough fermentation takes place, which will require from three to six weeks, ac- cording to circumstances dependent upon a proper de- gree of moisture and the strength of the materials used. When the cotton seed are thoroughly killed with a sharp hoe or mattock, cut down vertically through the layers, pulverize and shovel into a heap, where the fer- mentation will be renewed and the compost be still further improved. Let it lie two weeks after cutting down ; it will then be ready for use. The so-called Complete Manures have been ex- tensively used in orange culture, giving satisfaction in some instances and dissatisfaction in others. They are said to contain the chemical elements in the same pro- portion as found in the plant which they are designed to nourish, the ingredients and their relative proportions be- ing altered according to the requirements of the crop to which they are to be applied. It is doubtful whether chemical analysis can be safely relied upon to this extent in the manufacture of fertilizers. Chemistry deals only with dead matter, by it we learn what forms the dead plant ; it affords us means of ascertaining the component parts of the living plant, and if these be the same as in the dead form, it fails to indicate how they are affected by the vital principle. It is quite possible that vegetable nu- trition goes on entirely independent of chemical action, perhaps resolving the plant food taken up from the soil into more ultimate elements than chemistry has yet been able to do. The following is from Youman's ORANGE CULTURE 67 Chemistry: "Prof. Auderson states that it is only in rare instances possible to connect together tlae chemical composition and properties of the soil ; that analysis is frequently incapable of distinguishing between a fertile and a barren soil ; that it discloses only a part of the conditions of fertility, and that with each advancement in the accuracy of its processes the difficulties have in- creased rather than diminished. Still, in the study of soils we cannot dispense with the aid that chemistry affords." However this may be, it is probable that other manurial properties than their chemical constitu- ents gives this class of fertilizers their value, which is only determined by actual experiment. These and most other commercial fertilizers, which are prepared for immediate application, act quickly, though their effect is seldom lasting, forcing the trees into rapid but often abnormal growth. They may be adapted to the production of annual crops, but are too stimulating and concentrated to be applied to orange trees. CHAPTER XII. FERTILIZING. M'0^ ONSIDERABLE space has been given to '•'^^'' ■ the subject of fertilization, because in most places in Florida it is the sine qua non in orange farming, the great ])r()blem being to accomplish this most effectively at the least possible cost. The orange can be grown u])on very poor sf)il, but with indifferent success ; it is naturally a strong grower and a voracious feeder and responds generously if afforded a liberal supply of plant food. The Best Fertilizers. — Various fertilizers are used and different methods employed in their application. In- deed, the experimental and hap-hazard nature of the methods generally employed, is one reason why better re- sults are not obtained. The present extensive use of com- mercial fertilizers in orange culture is to be deprecated. Although they are easily transported and handled, and can be applied without loss of time, producing an immediate effect, they are expensive, and it is questionable whether the results obtained are commensurate with the outlay. Again, there is no safeguard against their adulteration, and a large proportion of them are undoubtedly adul- terated. It is impossible fort he grower to detect this, and he has no means of knowing whether his applica- tion will prove beneficial, useless or injurious. Those fertilizers which are used with the best results in orange culture are indicated in the preceeding chapter. The ORANGE CULTURE. 69 mineral fertilizers enumerated are not designed for gen- ei'al application and should only be used on soils and under circumstances where they have special applica- tion. The natural fertilizers are best suited to the orange and are most economically used in the form of composts. As it matters little which particular material or formula for combinations are used, those materials and methods should be used in any particular locality, which are least expensive and most readily a[)plied. The Best Time. — Fertilizers should not be applied until the trees have taken hold upon the soil and com- menced growing after being planted. If there is to be but one application during the year it should be made early in spring, say in February or in March ; if the trees are to be fertilized twice, the second application should be made in June or July. They should not be fertilized later than this as there is a possibility of injury from frost if the trees are forced into too active growth late in season. Application. — Whatever the fertilizer may be, ex- cepting of course, green crops and mulching, it should be reduced to the proper homogenous and pulverulent condition before it is fit for use. If the trees are to re- ceive individual applications, the soil should be drawn back with the hoe in a circle just beyond the extremi- ties of the feeding roots and the fertilizer spread lightly over the surface thus laid bare, raked in and covered lightly by drawing the earth which has been removed back to its place again. As the trees grow larger, the better way when possibfe is to cast the fertilizer broad cast and turn it under lightly with the plow, or thor- oughly mix it w4th soil with the cultivator. A large quantity is not necessary to keep the trees in vig- orous growing condition, a limited amount, in the proper condition, frequently applied, produces the best 70 MANVILLE'S TREATISE ON results. The common practice of scattering fertilizers upon the surface and simply raking them in, or at least, but imperfectly mixing them with the soil, is a poor one. While they should not be turned under too deeply, they should be completely covered with soil or thoroughly incorporated with its substance. Leachy Soils. — Although the soils and subsoils of Florida are for the most part sandy, it is a mistaken notion that there is any considerable loss of fertilizers through their being carried down beyond the reach of the roots by rainfall, or in other words, through the leachy nature of the soil. The fact is that the greatest and only loss of any consequence is by evaporation oc- casioned by the action of sun and air. This is one of the reasons why constant culture in mid-summer is so injurious, stirring the ground continuously at this season soon bleaches and impoverishes the soil. One of the earliest settlers and most celebrated orange growers in Florida is the authority for the statement, that the richest land in the State can be so completely exhausted by constant stirring without allowing anything green to grow, that at the expiration of a few years it will not sprout cow pease. The writer cannot do better than quote the following, on this point, from an article which appeared in the Country Gentleman, having special refer- ence to the sands of New Jersey, but equally applicable to Florida: " We are continually hearing and reading of the leachy character of light soils, especially those having a sandy sub-soil. Now, there is no more mistaken idea in existence than this, that sandy soil, being leachy, is liable to suffer terrible from drouth. The writer's soil is quite light, in places very light, but it rarely suffers* from dry weather, and never from wet. In a dry time the cultivator will turn up moist soil, and the corn and ORANGE CULTURE. 71 mangles will go on growing and retain their color when crops on clay soils are wilted and baked. He has seen clay land cracked open with dry weather and the sur- face too hard to be touched, while sandy soils remained loose and absorbent, and were continually bringing up moisture from below. The soil at Rothamsted is clay and Mr. Lawes states that nitric acid is lost with great rapidity from his soil in the drainage water ; therefore, it might be said that clay soil is lekchy. It is well- known that a sandy loam soil retains and holds in ab- sorption a much larger quantity of water, and resists evaporation much better than a clay soil. It must then be even less leachy than a clay soil. In actual practice and from long experience, he is well satisfied that a light, sandy, loam soil can never be so thoroughly satu- rated with manure by any ordinary course of farming as to become affected one foot from the surface, unless it is by the ploughing in of manure to that depth. So long as the manure is kept within six inches of the surface the line of dark soil will be less than a foot in depth. But supposing that the manure should flow downwards two feet, that would be all the better, for the roots would be after it without fail, And very quickly. But the manure does not pass downward through the sand ; as he has proven by digging under his manure heaps and barnyards exposed to all the rains of the season for a year — he found signs of it but an inch or so below the surface on the sandy soil. " To further test the matter, Mr. Stewart had some bottomless glass test tubes, two inches in diameter, filled with sandy sub-soil, clean and yellow in color, a foot deep with an inch of space on the top. Every week he fills this inch with liquid manure of the color of coffee, gathered from the manure gutter and diluted with water. This is equivalent to 52 inches of rainfall in the year. 72 MANVILLE'R TREATISE ON The surface is exposed to the air under cover. He has been keeping this in operation for three years, and as yet not a drop of water has passed through the bottom with the least appearance of color or mixture or any scent whatever, nor has he until recently found any in- dication of the presence of organic matter in the filtered water by a test of nitric acid. The soil is now discol- ored for about three inches in depth, which is not more than a fourth of the depth he wants fields enriched. To call such soils as this leaky, or without a bottom, or unable to hold manure, is a great mistake." Mr. .Steward admits that light soils require peculiar management. Contrary to the general opinion, he be- lieves them to be the very soils for diary farms — being warm, dry, and yet moist; never muddy ; easily worked ; productive of the very best fodder crops, such as rye, oats and pease, clover, orchard grass, corn, mangels and millet ; and of the very best market crops, as potatoes, pease, beans, sweet corn, melons, carrots, turnips and tomatoes, and there is no other farming that is so profit- able as these two combined. Hammock Laud. — Rich hammock lands require lit- tle fertilizing for some years, but even on such lands it is well to turn under green crops or to apply fertilizers occasionally to keep their fertility up to the standard. Young Trees. — While the trees are young the ob- ject is to hasten them along to the bearing age as soon as possible and they should be kept growing as rapidly as is consistent with perfect health. To accomplish this, active nitrogenous manures are applied with advan- tage. Beariug Trees. — When the trees reach the bearing age, the object is to produce the greatest possible amount of perfect fruit. If the same manures are still applied, the fruit, though large and fine in appearance, will be ORANGE CULTURE. 73 coarse, pulpy, and insipid, indicating that bearing trees require a change of fertilizers. As the trees are no longer growing so rapidly they do not require fertilizers which produce wood, but rather those which go to make up the fruit. The fruit or seed contains a much larger percentage of potash and phosphoric acid than other portions of the plant, the latter element is especially essential to all mature plants. Though a limited amount of stable manure or similar fertilizer, if thoroughly com- posted, will produce no bad effect and keep the trees growing moderately, still for application to bearing trees, the quantity of nitrogenous manure should be largely reduced. Potash, phosphoric acid or fertilizers containing these ingredients such as ashes, ground bone, etc., can be substituted for them with advantage, and either applied directly to the trees or in compost, the latter being far preferable. Or in place of more stimu- lating fertilizers, the grower can rely entirely and with equally as good effect upon decayed vegetation in the form of muck, mulch, or green crop ; these will sustain a healthy growth of wood, and at the same time afford material for the production of superior fruit. CHAPTER XIII. PRUNING. ROM the fact that the orange tree, if allowed to grow without training, will in time acquire a symmetrical form and reasonable fruitfuln ess, many have inferred that it requires little or no pruning in order to produce the best results. This is an error, however, for nature will accomplish the de- sired result much sooner and more satisfactorily if judi- ciously aided with the knife and saw. At the same time it is also true that more harm than good is often done by an injudicious use of these instruments ; hap- hazard or arbitrary methods are always injurious. Object. — The object to be accomplished and the methods to be used should always be kept distinctly in view. Orange trees are pruned to promote growth and fruitfulness. This is done in three ways : 1. By removing decayed or useless branches. 2. By assisting the tree to form a proper shape. 3. By admitting light and air to the interior of the tree. Excepting the necessary " cutting back " at the time of transplanting, the above comprises all the objects to be accomplished in pruning orange trees. System. — The system of pruning applied to the ap- ple, peach, pear, and other fruits of more northern lati- tudes, is not adapted to the orange. The former make a regular growth at stated times each year and by fol- ORANGE CULTURE. 75 lowing a certain plan of pruning year after year the tree is given the desired form. Although the orange and other citrus fruits are more irregular both in their habit and time of growth, requiring a different method of treatment in this particular ; still, if pruning be com- menced early enough and followed up systematically, the growth of the tree will be guided in the right direc- tion, and it will increase in size much faster and assume the proper shape much sooner than it would otherwise have done. Young Trees.— The most important time in forming the shape of an orange tree is during the first two or three years after it has been budded. The tree needs the closest attention at this time and should be gone over every week or ten days during the growing season, the useless shoots removed and each successive growth pinched back so as to form a regular and systematical top. If the buds are properly pruned for the first two or three years, their subsequent pruning is greatly sim- plified and they will rapidly assume the desired form. This point will bear emphasizing. While orange trees, after they attain any considerable size, cannot be pruned down to form low heads, pruned up to form high heads, or shaped at will with the same facility as some other fruits which have been systematically trained, still, if properly pruned while young, they will naturally and rapidly grow into beautifully and systematically shaped trees. Trees thus trained in the nursery are far prefer- able to those which have been allowed to grow at will. Little attention has been given heretofore to this matter, but nurserymen and propagators are now giving it the attention it deserves. Older Trees. — After the buds have grown two or three years and the trees have been set in grove form, the pinching back practiced in the nursery is no longer 76 MANVILLE'S TREATISE ON practicable, and the trees must be allowed to some ex- tent to take their own course. It will no longer do to shorten the growing branches of the tree. Water sprouts, however, from either the body or top must not be permitted to grow ; a distinction is to be made be- tween the strong shooting branches, which are to form the enlarged top, and the crude immature water sprouts which are to be removed. Limbs which chafe or inter- fere with each other should also be removed. The in- terior of the tree should be kept free from dead wood, thorns and small branches. The orange bears all its fruit upon the terminal branches and the inner branches add nothing to its capacity for fruit. The head of the mature tree extends from the ground at the ex- tremities of the lateral branches in symmetrical form to the topmost bough, and the interior kept open allows light and air to penetrate freely and prevents the har- boring of insects. This is the natural as well as the most advantageous form. If allowed to grow without attention, the lateral branches reach to the ground on either side and the inner twigs and branches decay and fall off; if these are pruned away, however, the ener- gies of the tree, which would be taxed with their re- moval, are directed exclusively to making new wood, thus increasing the bearing surface of the tree. Very few, if any of the trees that have been planted up to this time in the State, have been pruned while young, accord- ing to any particular plan or system, and they conse- quently present every variety of form imaginable. Here, common sense must be the guide, and the opera- tion modified and adapted to the exigences of each indi- vidual case. Keep the inside of the head open, and if the tree has not yet reached maturity, select those branches on all sides best suited to form a symmetrical top, remove other branches and smaller limbs from the ORANGE CULTURE 77 inside of the tree. The trees will look rather bare for a time, but the branches thus selected and trained will soon form a more shapely top. It will not do after the first two.or three years (during which time the shape of the tree should be determined) to cut back the principal upward shooting branches of the tree in order to form a low head or to extend the lateral branches, this will not accomplish the object and will only result in checking the growth of the tree. If the trees run up tall and straight, as is often the case with trees that have not been properly pruned, especially with seedlings, after the thick branches have been removed from the inside of the tree, the long straight branches that stretch sky- ward can be bent over and fastened in this position by lines tied to stakes driven into the ground. This not only encourages the trees to extend their branches laterally, but also hastens fruit bearing, as does any operation which checks the upward flow of sap. Height of the Stem. — It matters little whether the stem be one or four feet high so far as the ultimate shape of the tree is concerned, as the outer limbs ap- proach constantly nearer and eventually touch the ground in either case. But while the tree is young, the lower branches are a great protection to the stem, and for this reason should be encouraged to form as low down as possible, though it will be necessary to remove them as the tree becomes larger and the main lateral •branches extend farther. If the tree has been trained when young to branch at some distance from the ground, forming a long stem, the branches cannot of course be made to protect the stem until the pendant laterals ex- tend out far enough to do this. Time. — When pruning is begun when the trees are young and continued systematically as they grow older, it makes little difference at what season of the year it is 78 MANVILLE'S TREATISE ON done, as there would be little to remove at any one time the effect on the tree would be slight. With bear- ing trees the bulk of the work can be most conveniently done perhaps, after the fruit has been gathered .and be- fore the trees bloom, as at this time there is no danger of interfering with the fruit. When considerable wood is to be taken from the trees, or there is to be extensive pruning, it should always be done in the spring after all danger of frost is over. If done earlier it is apt to start the trees growing, rendering them liable to injury from cold. When done at the proper time the trees have all summer to grow in, and by fall the openings have been closed up by new wood and the trees are prepared for winter. Instruments. — The instruments used in pruning should always be kept sharp ; a smooth, clean cut will heal over in half the time required by a rough, uneven wound. Large branches should be cut with the saw ; the knife should be used for smoothing over the cuts made by the saw and in making smooth cuts in severing smaller branches frohi the larger limbs ; the shears are the best in- strument for cutting back the smaller branches and for re- moving thorns and dead wood. In cutting back a limb or branch make a clean cut close to a bud on the side from which the next growth is desired, in this way the new growth is directed and the form largely controlled. Root Pruning. — Root pruning is practiced to pre- pare large trees for transplanting, and sometimes to pro- mote fruit bearing. For particulars regarding the oper- ation, see chapter on planting. tc^ta^is^Li^xxj;^^^!!^^ CHAPTER XIV. DISEASES. *)^' HE orange and its congeners are perhaps the longest-lived fruit trees grown in semi-tropi- cal climates. Where surrounded by condi- tions, which conduce to their most perfect de- velopment, they live and flourish for upwards of a cen- tury. Indeed, we have recoixi of trees which have sur- vived more than four hundred years. In its best estate in Florida, the orange tree is seldom or never affected by disease, and premature decay or disease, where it exists, is largely if not entirely attributable to the in- adaptation of location, soil, food or culture to the i-e- quirements of the tree. Proper conditions in these par- ticulars will invariably produce healthy trees. In other words, no disease has yet appeared in this State which attacks the orange or other citrus trees to any consid- erable extent where properly planted upon a soil adapted to its growth and cultivated in the proper manner. The general treatment applicable to all diseases alike being to remove the aggravating cause and to supply the condi- tions necessary to the normal development of the tree, which latter conditions, the writer has endeavored to set forth in the foregoing chapter of this work. Die-Back. — Die-back is the most common and perni- cious disease that aifects the orange tree. Trees affected by this disease exhibit to a greater or less extent the fol- lowing symptoms, viz ; The rapid formation of imma- 80 MANVILLE'S TREATISE ON tiire, angular new growth, twisting and turning down- ward, bark of the affected part wrinkled and blistered ; these blisters or nodules generally burst, exuding sap, which collects on the surface in the form of resinous gum of a reddish-brown or rust color, on which account it is sometimes called the red rust ; buds abnormally developed, forming diseased clusters which fail to per- fect leaves or twigs, leaves somewhat curled ; the new growth dies back first, then the smaller branches, the process continuing until the entire tree becomes diseased and dies. Although the disease is produced by various causes, these symptoms are always present to a greater or less extent in all cases of true die-back. The specific nature of the disease is not perfectly un- derstood. It is, however, neither caused by fungus nor insect, but probably results from faulty nutrition occa- sioned by improper conditions which surround the tree. As a rule, it is not communicable from one tree to an- other, and is only found where the conditions exists which produce it. Die-back prevails upon a certain class of flat-lands, even when drained, where a poor white sand overlays a pernicious hard-pan very near the surface. It is also found where a quicksand subsoil comes in contact with the roots of the trees, especially where drainage is defi- cient. Upon such soils, and wherever the ground is liable to become saturated with water beyond the possi- bility of drainage, the only remedy is to remove the trees to a more congenial spot. Deep planting is another prolific source of this disease, the smothered roots are unable to perform their func- tions in supplying the proper nourishment and the tree soon languishes. Whenever the trees are affected by die-back, or otherwise diseased or stunted from this cause, they should, if not too far gone to pay for the ON ORANGE CULTURE. 81 trouble, be raised at once. (See chapter on planting. ) Earth, weeds, grass, or other debris about the collar or above the roots affect the tree in the same way. Unless care be taken, plowing, hoeing or mulching the trees often gives rise to this trouble. Accumulations of this character should be kept drawn away from the trees. Another cause of this disease is a wet soil and the remedy is ditching or underdraining. In cases where the land, though adapted to the orange, is so low as to be in danger of saturation in seasons of excessive rain- fall or flood, in addition to surface drainage, the trees should be set on ridges two or three feet above the level of the surface thrown up for the purpose. Trees, which in their original positions upon such land were affected with die-back, have been entirely freed from it by be- ing raised in this manner. Powerful manures, such as barn-yard manure, cotton seed, guano, animal refuse, etc., if applied in a crude or undecomposed state, produce die-back. All such fertili- zers should be well rotted, or better still, composted, be- fore they are used, and even then should not be applied in excessive quantities to individual trees. Trees af- fected by die-back from this cause generally recover in time, as the materials decompose, unless the quantity applied has been very large. Clean culture in summer or tearing the roots with the plow, often produces this disease, especially is it the case on low land where the moisture in the soil renders the roots liable to be scalded by the sun. The remedy in such cases is of course to substitute correct for iujurious methods. The disease can generally be traced to (me or other of the above causes. The diseased parts should be removed as nearly as possible in all cases, and the trees surrounded by every influence conducing to health and 82 MANVILLE'S TREATISE ON vigor. Where the trees are very badly diseased, it is the best policy to discard them altogether aud begin with new specimens. Die-back is often erroneously used as a general term, including all affections of the orange which occasion a dying of the twigs or branches. As has been shown above, it is distinct, each case exhibiting the peculiar symptoms of the disease. Where these symptoms are wanting, even though the limbs may die, the tree is not affected by die-back. Poverty of soil, insects, the natural thinning out of the interior branches of trees which have not been properly pruned, and perhaps other causes, will sometimes occasion the death of the limbs when there is really no disease ; the only treatment re- quired being to remove the decaying part and give the tree proper attention in the matter of cultivation, fertili- zation, etc. Limlb-Blight. — Limb-blight is the name applied to a dying or blighting of the limbs observed in some sec- tions to distinguish the disease from die-back from which it is distinct, resembling the latter only in the dying of the limbs. It is supposed by Dr. Z. H. Mason to be the result of a fungoid growth, from whom we quote the following, viz : " There is another disease that may properly be termed limb-blight, to distinguish it from the die-back. It is known among old settlers in this sec- tion as ' curl leaf.' As far as my observation extends, its attack is confined to trees sixteen years old and up- wards. I have seen it only in bearing trees. In my own grove it affects my oldest and most productive trees, except the large trees that I transplanted years ago, shortening the tap root, they continue healthy. I have noticed it in trees that were apparently healthy and vigorous, yet having some curled leaves ; they were planted on land having a natural drainage. I find the ORANGE CULTURE. 83 disease in groves planted on ham mock as well as upon high pine land. The disease generally continues several years before all the limbs become affected. Its first ap- pearance is in the leaves, during the day they look wilted and curled up as though the tree needed water- ing. Next morning they look fresh until the middle of the day ; gradually the outside limbs begin to die and when the tree becomes badly diseased, the growth of the fruit is arrested. The next year the tree may be cov> ered with a heavy crop of blooms, which fall off, and the top of the tree dies. I dug up one tree twenty-three years old that had lost all the top, and made a careful examination of the roots, they appeared to be perfectly sound. This tree was transplanted into new ground more than two years ago, and now has a new top ap- parently free from disease. I am unable to say what the disease is, or what causes it. It is found upon trees planted upon ground naturally rich, and on those on fair pine land. The only effectual remedy that I have found is to remove every limb that shows the least ap- pearance of disease. When this is done, the trunk puts out healthy, sound shoots which make a rapid growth." "Gum Disease" or "Bleeding." — This is an ex- udation of sap from the trunk or main branches of the tree, spreading over the bark like a coat of varnish, hardening into gum, killing the bark and diseasing the wood beneath. If not checked, it eventually girdles and destroys the branch or tree. To stop this, cut an incision through the bark and new wood completely around and a little beyond the spot affected, which can be distinguished by the discoloration of the bark ; then carefully remove the bark and diseased wood within the limits of the incision, and cover the wound with wax, gum shellac, or mud. This sometimes makes an ugly wound, but it will heal over in time and is the only way 84 MANVILLE'S TREATISE ON to save the tree. From the fact that there is an exuda- tion of sap in both, gum disease and die-back are some- times confounded ; there is, however, no connection be- tween the two. The former seems to resemble in some particulars a disease called " gamma" which is described by General Sauford in his essay on " Orange Growing in Southern Europe." Foot-rot. — Another disease called foot-rot is enum- erated by some authorities. " The symptoms are the decaying and sloughing of the bark around the crown and tap-roots of the tree." It is supposed to be caused by the fermenting of the sap in the parts affected, occa- sioned by contact with fermenting manures or stagnant water; if this be true, it is not, strictly speaking, a disease, but simply a decay of the parts, owing to their being surrounded by an uncongenial element. The last three diseases enumerated, namely: limb blight, gum disease, and foot-rot, need give the orange growers of Florida no uneasiness, as they are of rare oc- currence and seldom or never affect healthy, vigorous trees which receive the proper treatment. Smut or Black Rust. — The sooty appearance com- monly called smut or black rust, sometimes found upon the fruit and foliage of the orange tree is not a disease but a fungus. If the trees are kept in good condition by thorough drainage, proper culture, and moderate manuring ; and a weak alkaline solution, such as potash, soda, or ammonia, is applied where the smut shows itself, it will speedily disappear. The trunks and main branches should also be kept free from moss or scurf by occasional washings with strong soap-suds or a weak alkaline solution. CHAPTER XV INSECTS. 'CALE INSECTS.— The most formidable in- sect enemy of the orange family is the scale in- sect. There are many species. In " Orange Insects," by Wm. H. Ashniead, and " Report of Scale Insects of the Orange," by H. G. Hubbard, Special Agent of U. S. Department of Agriculture, six species are enumerated as found upon the orange trees of Florida. The majority of these are rarely seen, the common Long Scale being most destructive and wide spread. They propagate very rapidly, and were they not preyed upon by other insects their ravages would be far more extended and disastnjus. Mr. Ashmead men- tions no less than eleven insect enemies of the scale, and there are doubtless others. These beneficial insects make their appearance as soon as the scale shows itself to any considerable extent. Some lurk beneath deserted scales, others deposit their eggs beneath the scales, their young feeding upon and destroying them ; and thus in one way or another these parisites wage persistent and effectual warfare, which usually prevents the scale from spreading to an injurious extent. Occasionally, how- ever, the scale outstrips its enemies for a time, and if the trees are not vigorous, or are so small that their limited foliage is soon covered by the scale, they are very liable to succumb if measures are not taken for 86 MANVILLE'.S TREATISE ON their eraclicati(jn ; but strong growing trees with abund- ance of wood are seldom materially injured. The newly hatched larvie have legs, move about the tree and are easily killed by mild insecticides ; they soon insert their beaks, become stationary, shed their legs, and exude the scale which covers them ; later, eggs are deposited and hatched beneath the fully formed scales. These successive stages of development have been termed respectively periods of migration, g7-owthand incubatiov. The insects are more difficult to destroy after the scale begins to form, becoming invulnerable with age, the eggs being unaffected by ordinary applications. It has been thought that excessive cold in winter de- stroys the scale. This has, however, no other effect than to delay the hatching of the eggs until warm weather, when, appearing simultaneously, they seem rather to have been increased by the cold. There are generally three broods during the year, the largest number hatching during the months of March and April, June and July, and September and October. As the insects are most easily killed in the migratory stage, and most difficult to destroy during the period of in- cubation, washes are most effectual, applied during the above months and least effective when a majoiity of the scales are filled with eggs, or during February, May, August and the winter months from November to Jan- uary. If the broods were clearly defined and the eggs hatched simultaneously, it would be an easy matter to eradicate the scale. Unfortunately, though, the broods hatched are more numerous during the months indicated above, they breed to a greater or less extent continuous- ly throughout the year. For this reason, whale oil soap, tobacco concoctions, and the numerous alkaline washes generally recommended, fail to give entire satisfaction. Although they destroy the young larvae, they do ORANGE CULTURE. 87 not entirely destroy the mature scales, and have no effect upon the eggs. Mr. Hubbard, in his experiments as special agent of the Agricultural Department, found lye to be entirely without effect upon this insect. A very strong solution of whale oil soap failed to destroy the eggs. Oil of creosote, bisulphide of carbon, sulphuric acid, and sulphate of iron were all more or less injurious to the trees. Of all the preparations tried, he found kerosene oil to be the most effective, as well as the least injurious and expensive. Kerosene has long been known to the orange grower of Florida as a powerful insecti- cide; but its use, either pure or mixed with water, es- pecially in inexperienced hands, is liable to damage the trees more or less. Mr. H. mixed it with milk, in which form he found it to be quite as effective as the pure oil and entirely harmless to the tree. This kerosene emul- sion, now in common use, is perhaps the best insect wash we have. Mr. Hubbard gives the following instructions for its preparation and application in his report : "As the result of numerous experiments, I would recommend an emulsion consisting of refined kerosene two parts ; fresh, or preferably sour, cow's milk, one part (per- centage of oil, 661.) Where cow's milk is not easily obtained, as in many parts of this State, it may be re- placed by an equivalent of condensed milk (Eagle brand) diluted with water in the proportion one to two. As the cans of condensed milk usually sold in the stores contain exactly 12 fluid ounces (three-quarters pint), the following receipt will be found a convenient one : Kerosene 1 gallon =8 pints =64 per cent. Condensed milk 2 cans =U '' ) ^gg ^^^^^^ Water 4 cans =3 " j ^ " Mix thoroughly the condensed milk and water before adding the oil ; churn with the Aquapult pump until the whole solidifies and forms an ivory-white, glistening 88 MANVILLE'.S TREATISE ON butter as thick as ordinary butter at a temperature of 75° F. If the temperature of air falls below 70°, warm the diluted milk to blood heat before adding the oil. " In applications for scale insects, the kerosene butter should be diluted with water from 12 to 16 times, or one pint of butter to one and a half gallons (for Chaff Scale) ; one pint of butter to two gallons (for Long vScale). The diluted wash resembles fresh milk, and if allowed to stand, in two or three hours the emulsion rises, as a cream, to the surface. The butter should therefore be diluted only as needed for immediate use, and the mixture should be stirred from time to time. " A wash prepared in accordance with the above direc- tions will kill with certainty all the coccids and their eggs under scales with which it can be brought into direct contact. No preparation known to me will, how- ever, remove the scales themselves from the tree, or in any way reveal to the unassisted eye the condition of the insects within. This can be ascertained only by microscopic examination of detached scales. Time alone and the condition of the tree itself, will indicate the re- sult of an application. Kerosene, it is true loosens the scales from the bark, so that for a time they are readily brushed off, but they afterwards become more firmly adherent, and are very gradually removed by the action of the weather. " Upon trees thickly infested, a large proportion of the scales are so completely covered up by the overlapping of the other scales, or the webbing together of leaves by spiders and other insects, that the wash cannot be brought into direct contact with them, and they are only reached, if at all, by the penetrating action of the oil. This takes place gradually, and the number of bark-lice killed, increases for some time after an application, reaching the maximum in the case of kerosene about ORANGE CULTURE, 89 the fifth day. In long scale the oil penetrates the outer end, killing first the eggs at the broad and thin outer end, but its action is gradually exhausted and several pairs of eggs in the middle of the scale are often left alive. It is, therefore, impossible, in a single appli- cation, to destroy every scale upon an orange tree. This can, however, be accomplished by making two or three applications at intervals of four or five weeks. The mother insects being nearly or quite all killed by the first treatment, and the surviving eggs having in the in- terval all hatched, a second application, if thorough, will clear the tree. " The great difiiculty experienced in reaching every part of the tree renders it absolutely necessary that any liquid used should be applied in fine spray and with considerable force. An ordinary garden syringe does not accomplish this and can never be used satisfactorily against scale insects. " The most effective instrument known to me is the Aquapult force pump. This throws a constant stream of moderately fine spray with such force that the fluid is driven into close contact with the bark, and on strik- ing the leaves and branches is dashed into fine mist which envelops the tree and wets every leaf. The tree should always be sprayed from each of four sides, and rather more liquid should be used than seems necessary to drench every portion. " Although I have thought it^advisable to recommend several applications, a single very thorough spraying with a good force pump will, in most instances, prove entirely effectual in clearing the tree, since, if only an occasional egg or coccid escapes, the great army of par- asites and enemies will be almost sure to complete the work." Published statements regarding the scale are often 90 MANVILLE'S TREATISE ON more alarming than the facts warrant. The natural checks upon their increase are usually sufficient to pre- vent their spreading to an injurious extent. Trees diseased or stunted from improper location or bad treat- ment are, it is true, liable to serious attack, but trees in this condition are liable to be affected by any or all of the maladies and ailments to which the trees are sub- ject. In dealing with this pest it may be laid down as a rule that healthy vigorous trees are seldom or never seri- onsly attacked. The best and only way to prevent their attacks, and an efficient means of checking their rava- ges, is such thorough cultivation as will keep the trees in thrifty growing condition. In fact, the application of washes to remove the insect will avail little unless the trees are kept in this condition, they may, it is true, be removed for the time being, but the conditions favor- ing their development are still present and they will re- turn with increased destructiveness. While it is useless to depend solely upon washes to keep the trees free from in- sects, it is unwise to rely entirely, as some have done, upon culture and fertilization to accomplish this result. The latter is the best possible way to prevent the attacks of scale in the first instance, but where they are already established upon the tree, both agencies should be used, the one to remove the insects and give the tree a chance to recover, and the other to stimulate a more active, vigor- ous growth. The Mealy Bug. — This is another insect of the same genus as the scale, though diflfering from it very much in appearance. It has received its name from the mealy substance which covers its body ; its eggs are laid be- neath a cottony-like substance secreted by the female, which gives the branch affected the appearance of being covered with barnacles. Although in injurious effects they rank next to the scale, they are not nearly so damag- ORANGE CULTURE. ©1 ing to the tree, and are easily destroyed by the methods employed to eradicate the scale. Other Insects. — Although, with the possible excep- tion of the rust mite, the scale and the mealy bug are by far the most serious insect enemies with which the orange grower has to contend, there are other insects which feed to a greater or less extent during some periods of their existence upon the foliage of the orange tree ; of these, Mr. Ashmead enumerates the following, viz: Leaf-Footed Plant Bug, Orange Butterfly and Orange Dog, Lance Rustic Moth, Woolly Bear or Stinging Caterpillar, Angular Winged Katydid, Lubber Grass- hopper, Large Bluish White Weevil, Small Bluish White Weevil, and Orange Aphis. These feed mainly upon the new growth, and where the tree has but little foliage, or has been recently budded and is just starting, they are sometimes very troublesome. Their ravages are, however, so comparatively limited they can scarcely be considered serious ; they are annoying rather than alarming in their character. The weevils can be re- moved by gently shaking the tree, catching them upon a sheet spread beneath for the purpose. The aphis or black plant louse is destroyed by applications of pow- dered sulphur or ordinary insect washes. The other in- sects enumerated must be destroyed by hand. The borer found in the decaying wood of the orange tree sometimes extends its operations into parts apparent- ly sound. It never attacks the growing wood unless in close proximity to decayed parts. The sure preven- tive is to keep the tree free from dead or decaying wood, and the only remedy is to dig out and remove the intruder. The orange, in common with other fruit trees, is some- times girdled by the wood louse or white ant. Like the above, they seldom attack growing wood unless en- 92 MANVILLE'S TREATISE ON couraged by the proximity of decayed wood. Trees set too deep are much more liable to attack than where the brace roots protrude above the ground in the proper manner. If the ground above the collar is kept clean and free from decayed matter, and where the trees are set too deep, if the earth be removed to expose the roots there will be no trouble from this source. The Rust Mite. — This chapter would be incomplete without some mention of the little mite which causes the rust so often found upon the fruit. Although the indi- vidual insects are not visible to the naked eye, large numbers of them give the fruit the appearan6e of being covered with fine dust. The discoloration of the fruit follows the appearance of the insect. They puncture the oil cells in the rind of the fruit and the exudation and oxidization of the oil upon the surface produces the rust. The earlier in the season the mites appear, the darker will be the color of the rust. The rust does not damage the fruit, but as it injures the appearance of the exterior, depreciates its price in market. The rust is an advantage in one particular, it toughens and hardens the rind so that it will keep for a great length of time. The mites are said to be easily killed by any of the in- secticides used to destroy the scale. But as they are wide-spread and breed very rapidly, it would be too ex- pensive and laborious to prevent their ravages in this way. A practical and efficient method for their exter- mination remains to be devised. CHAPTER XV L MARKETING THE CROP. >^ITHIN the past decade, facilities for shipping and methods of preparing the Florida orange crops for market, have greatly improved. The comparatively small crop of ten years ago was put up with little care or system in packages of the most nondescript character and forwarded to commission merchants unknown to the grower and whose dealings were often questionable. Freight rates were high and time in transit uncertain. The grower can now dispose of his crop in various ways. He can sell the fruit outright, either upon the tree, delivered in the grove, or at the purchaser's packing house. Or he can consign his fruit to reliable commission merchants in the principal towns of the State, or any of the larger cities of the country North or West. He can pack it himself or he can have it done at a reasonable price at the principal shipping points in the State. The fruit is transported by various railroad and steamship lines in quick time and at low rates to all parts of the country. The shipping season begins in September and October with the Egg and Oblong varieties, and closes late in spring with the last of Hart's Late variety, the bulk of the crop at present being shipped between the fifteenth of November and the fifteenth of March. The early and late fruit bring the best returns. To secure the best prices, the fruit must not only be 94 MANVILLE'S TREATISE ON of superior quality but must be tastefully and carefully packed according to the established standard. As a large portion of the crop is prepared for market and shipped by the growers, the writer has endeavored to give below some hints as to the best methods of gather- ing, packing, etc. Drjing or Packing- House. — A drying or packing- house should be built in which to cure and pack the fruit. It should be constructed freely to admit light and air, as well as to close securely against storms and in- clement weather. The plan formerly followed of placing the fruit in bins or piles and allowing it to go through a sweat is no longer practiced by the best packers. It in- jures rather than toughens the rinds, rendering the fruit more liable to decay in transit. Shelves or trays should be constructed to receive the fruit, upon which it can be spread to dry. A very convenient way is to arrange the shelves around the sides of the drying-room, they can be placed about one foot apart from the floor to a con- venient height, and should be about two and a half feet wide. They should be made of slats, say two inches wide, placed about an inch and a half apart with the corners rounded so as not to mar the fruit. The slats should belaid transversely, inclining slightly forward to keep the fruit constantly within reach, the latter being prevented from rolling off by strips nailed across the front of the shelves just above the slats. Tables, bins, etc., to facilitate wrapping and packing can be arranged as seems most convenient. When warm days succeed cool nights, which is apt to be the case during the ship- ping season, the fruit remaining for some time during the early part of the day at a lower temperature than the atmosphere, collects moisture to such an extent as to interfere materially with the operations of wrapping and packing. For this reason, as well as to facilitate the ORANGE CULTURE. 95 drying of the fruit and the comfort of the ©perator, an even temperature should be maintained in the drying- house if possible. Gathering. — The fruit should be gathered upon a clear, dry day. As the stem adheres to the rind, the fruit should be cut, not pulled, from the trees. Even late in the season, when the fruit can be separated readily from the stem without injilry, it is better to cut it, as the cut stem adhering to the fruit is a mark by which selected fruit is distinguished in market from " drops," wind falls and second rate fruit generally. When cut, the fruit is usually placed in sacks hung to the picker's side, from which the fruit is laid in boxes to be conveyed to the drying house. When first gathered from the tree, the rind is full of water, the least scratch or thump producing an abra- sion and causing decay. For this reason, the fruit from the trees to the drying-house shelves must be handled with the utmost care — as it is put by a very successful shipper, "just as you would handle eggs." Curing. — To toughen the rind of the fruit so that it will stand the handling and pressure required to pack securely so that it will not shrink and loosen in the boxes after it has been packed, it is necessary to cure or dry the fruit. This serves also to allow time for any defect which would cause decay to develop, so as to be easily detected and the fruit thus injured rejected. When the fruit is received from the grove it should be spread upon the shelves not more than two or three layers deep, in order that the air may have free access to the fruit. The time required to evaporate the water from the rind varies from twenty-four hours to several days according to the maturity of the fruit and the con- dition of the weather, and can easily be determined with the aid of a little experience. After it has been 96 MANVILLE'S TREATISE ON dried, the rind is tough and yielding as rubber, and the fruit will stand considerable pressure without injury. Sorting. — From the drying shelves the fruit is sorted. Fruit that is cut, plugged, thorned, or bruised should be thrown out and the remainder sorted into two or three grades according to quality. While shipping, all the decayed or partly decayed fruit should be carefully re- moved from the drying house, as contact with it will cause sound fruit to decay. When the crop is large enough to justify it, the fruit should also be sized to se- cure uniformity and to facilitate packing. A simple device for sorting the fruit is easily constructed by placing side by side upon a frame two pieces of board six or eight feet long elevated at one end so as to lie at an incline of about twenty-five degrees. The inner edges of the boards should be rounded so as not to in- jure the fruit and should be placed at such distance from each other as will allow the smaller sized fruit to fall through a few inches from the upper ends, and the larger size to pass between as it approaches the bottom. Passing through cloth funnels or pockets fastened upon the under side of the inclined pieces, the oranges of dif- ferent sizes are deposited without injury in boxes placed beneath for their reception. In this way the fruit can be separated into as many sizes as is desired. From the shelves or sizes the fruit is placed in shallow raised bins or tables arranged conveniently for Wrapping. — By a quick motion of the hands, each fruit is enveloped in a wrapping of manilla paper. The twist which holds the paper in place should cover the stem, to prevent its pressing too hard upon the fruit next to it, and to enable the packer to arrange it uniformly. Packing. — The standard box should be used, size, 12x12x27 inches outside measurement, being divided by the middle partition into two compartments, each con- , ORANGE CULTURE. 97 tainiug one cubic foot. They should be thoroughly seasoned, and if they have already contained fruit, should be carefully cleaued. Green boxes, or those which have contained decaying fruit, often cause the fruit to rot on the way to market. Before putting in the fruit the compartments of the box should be lined with paper ex- tending over the top enough to fold over the fruit when the box is full. Bright colored linings set off the box to good effect. Paper should also be placed between each layer of fruit in the box to give elasticity to the whole and prevent any fruit which should decay from coming into contact with the rest. The fruit should be placed in the box in layers, with the stem end down, not only should the layers be uniform in number and posi- tion, but the number and position of the fruit in the layers should be uniform throughout the box. The number of layei-s and of fruit in the several layers will of course vary with the size of the fruit, but a little practice will enable the packer to arrange each size sys- tematically. For instance, the first layer, of a size which will run one hundred and twenty-eight to the box, should be arranged in each compartment thus : o o o o o o o o o o o o o o o o The fruit in the sucessive layers being placed one upon another, four layers or sixty-four fruit filling one end of the box. For a size running one hundred and seventy- six to the box, the first layer should be arranged thus: o o o o o o o o o o o o o o o o o o The fruit in the second layer being pla<;ed over the 98 MANVILLE'S TREATISE ON « interstices of the first, five layers alternately of eighteen and seventeen, or eighty-eight fruit filling the end of the box. In this way a system of layering can be de- vised for all the diflTerent sizes. The fruit should be pressed in firmly, and when the box is full should come up even with the top, or extend above it not more than a quarter of an inch. The paper lining is then folded over the fruit, the cover tacked on, and a strong hoop is nailed around each end and the middle of the box, mak- ing all secure. On each end of the box should be neatly and clearly stenciled the number and grade or brand of the fruit within, the name of the consignor and con- signee, and the line by which it is to be shipped. This finishes the work. This may seem to be taking extra and unnecessary pains with the fruit, but the fact is that packed in this manner it brings considerable more per box and finds readier sale than that which is hastily or less attractively put up. CHAPTER XVII THE LEMON, LIME, AND OTHER SPECIES OF THE CITRUS. HE LEMON. — Until recently, lemons grown in Florida, have been regarded as to(i large, thick skinned and bitter-rind for profitable shipment. The last few years have demon- strated this to be erroneous. Heretofore, comparatively unknown in market, a poor opinion was formed from the inferior quality and improper preparation of the specimens forwarded. The cultivation of better varieties and improved methods of preparing the fruit for market has changed this. The fruit is now in demand, sought for by local buyers and consignees in Northern markets, and commands a price equal to the best Florida oranges, and much greater than imported lemons. As a result of this favorable condition of market, lemons are being more extensively planted. The lemon is a stronger grower and an earlier and more prolific bearer than the orange. Oranges are essentially a luxury, lemons on the contrary are a staple article of consumption throughout the country, the de- mand being steadier and the price less fluctuating than for the former commodity. For this reason their cul- ture promises to be very profitable wherever they can be grown without injury from frost. Perhaps there is no better authority upon the commercial value of the citrus fruits than Mr. E. Bean, the celebrated orange-packer lOO MANVILLE'S TREATISE ON of Jacksonville, Florida. This gentleman, who has been engaged in this business for the past six or eight years, has probably handled more oranges than any other man in the State ; the shipments from his packing- house amounting to many hundred boxes per week during the shipping season. For some time he has been experi- menting with lemons. The results of these experiments have been so satisfactory that he has arranged to engage largely in packing and shipping the fruit, and has also planted a lemon grove sixty acres in extent. The Flori- da Dispatch for August 14th, 1882, says : " We are in- formed that Mr. E. Bean has decided to put in a curing- house for the ripening of green fruits. We announce this with great pleasure, as it will furnish a home mar- ket for the Florida production of the Sicily lemon. If the lemons are left to ripen on the tree, they grow large and coarse, and are consequently comparatively value- less. Mr. Bean proposes to take them, when they have reached a certain' size and state of maturity, without reference to the color." The lemon will not stand as much cold as the orange, but is successfully grown as far north as Putnam County. There are numberless coarse and inferior sorts. To avoid these, as is the case with the orange, only well-known leading varieties should be planted. The Sicily (not a native seedling, but the imported fruit of commerce), French's seedling (not the so-called French lemon). Lamb and Eureka, have been fruited for some years and are in every respect superior, the latter three being fully equal to the imported variety. The characteristics of these three varieties are essentially the same; fruit is small, with smooth, tough, thin skin, fine juicy pulp, and acid devoid of bitter; French's seedling and, Eureka are less thorny than the other two. Bijou, Genoa, Imperial and some other recently imported varieties promise well. The young trees, even ■-■■ ^_^ hlBAhMY. ORANGE CULTURE. lOl of the better sorts, are apt to produce large coarse fruit, which becomes smaller and finer as the trees grow older. As important as it is to have the best varieties, they will avail little if the fruit is not projDerly prepared be- fore shipment. Proper preparation for market is in fact the great sine qua uon in lemon culture, and to mismanagement in this particular is to be attributed much of past failure. The following method of curing lemons is taken from the Rev. T. W. Moore's excellent Treatise and Hand Book on Orange Culture in Florida, viz : " My method of preparing for market is to gather the fruit when about one-third larger than we find the Sicily lemon when it reaches our American market. In curing, the fruit will shrink this extra third. The fruit is gathered in latticed boxes holding about fifty lemons each and only two layers deep. The fruit should be cut with short stems and so handled as not to be bruised. The boxes are at once put into a close room, one on top of another, but forming a hollow square. If the room is large, cover the pile of boxes with a cloth that will confine the sulphurous gas with which the fruit is be treated. Place in the center of the square, and sufficiently remote from the boxes not to heat the fruit, an oven of live coals. Throw on the burning coals an ounce of flowei's of sulphur, and fasten down the cloths. If the room is small and tight, the cloth is not necessary. Allow the fruit to remain in a dark room for a week, then expose to sunlight — the direct rays of the sun a part of the day is best — until the skin is yellow. The fruit is then ready for market or to be stored for future use, for when thus treated, it can be kept for an indefinite time." The Lime. — Limes are always in demand and their culture profitable. They are rather more tender than lemons and can only be grown safely upon a large scale 102 MANVILLE'S TREATISE ON in the southern part of the State, or further north in more favorable locations. They are a small bushy tree, and when planted alone, should be set from twelve to fifteen feet apart. A very good plan is to plant them between the rows of orange trees, as the latter grow much larger and protect them from the cold. The Florida is the variety most generally planted. Except in the particulars noted above, the lemon and the lime require the same treatment as the orange. Other Species. — In Europe and elsewhere, other species are cultivated for profit — from the rind of the citron the preserved citron peel of commerce is manu- factured, the bergamot yields the fragrant " oil of berga- mot," and various preserves, conserves, essential oils, and perfumes are made from the fruit, foliage and flow- ers of the several species. In time, these species will doubtless be grown and these articles manufactured in Florida, but at present the orange, lemon and lime are the only species that are grown to any considerable extent for profit. The following, however, are worthy of cultivation for home use or for ornament, viz: The Citron, for preserving ; the Shaddock, for its magnificent large fruit and sub-acid juice; the several variegated varieties, Citrus Japonica, Myrtle, Otaheite, Kumquat, and other ornamental varieties. APPENDIX. CLASSIFICATION AND DESCRIPTION OF THE SPECIES AND VARIETIES OF THE CITRUS AS KNOWN IN FLORIDA. The characteristics of the varieties described follow the common type of the species, except in the particu- lars noted. Those marked with an asterisk (*) are best known and most esteemed. The Sweet Orange, {citrus aurantium.) Trees of moderate size and compact form ; branches thorny ; foliage dark green ; leaves oblong, acute ; leaf- stalks winged, shoots whitish, flowers white, fruit round, of a deep yellow color. It has received more attention than the other species, hence the many varieties. In Europe the varieties of the sweet orange are separated into two divisions, according as they resemble the orange of Portugal or the China orange. The former may be regarded as the type of the species, and is the common sweet orange of Florida. The latter is dis- tinguished by the smooth, thin skin, and the exceedingly sweet and tender pulp of the fruit ; the foliage is less dense than that of the Portugal orange, the leaves are more elliptical and acute, and the branches slender and straggling. The Sweet Seville and Egg Orange of Florida are examples of the China Orange ; the Naval and St. Michael's present some of the characteristics, and may perhaps be included with it. 104 MANVILLE'S TREATISE ON To facilitate selection and prevent confusion, the varieties of this species are divided into five arbitrary classes. CLASS I. — Varieties Fruiting Early in Season. Early Oblong.* — Synonym Thornless Bell. — Fruit medium size, oblong, skin thick ; lacking the sub-acid of other sorts. Quality fair. Although its color turns little if any earlier than other sorts, its juices attain perfec- tion in September and October, when it should be marketed. Tree bears young ; prolific ; vigorous ; not as large as some. Leaves illiptical, acute, and scattering ; branches slender and thornless. Like the varieties under class III, it is easily distinguished by the appearance of fruit and foliage. Probably originally imported, but long grown in Florida. Egg. — Synonym Beach's No. 1. — A sub-variety of the above, which it resembles, excepting that the fruit is smaller, having a smoother skin, and being more juicy, CLASS II — Varieties Fruiting Late in Season. TardlflF. * — Synonym Hart's Late. — Medium sized, round, skin smooth and thin, grain fine, with a brisk and racy flavor. A common Florida orange, in quality above the average. Retains its juices until the middle of July, or even later, and is especially valuable on this account. Tree prolific, a strong grower; branches thornless, or nearly so ; foliage somewhat distinct. Native seedling. ORANGE CULTURE. 105 CLASS III. — Varieties Readily Distinguished by the Appearance of Fruit or Foliage, whose Marked Pecu- liarities are Constant. Bell. — Large, pear or bell-shaped ; skin firm ; juicy. Tree prolific, a strong grower, having fewer thorns than some varieties. Probably imported, but long grower in Florida. Du Roi.* — Size medium, round, skin firm, juicy. Quality good. Plainly marked, being ribbed like a muskmelon. Tree very prolific, vigorous ; few thorns. Probably imported, though long grown in Florida, Charley Brown. — Large, very much flattened at stem and blossom ends. Quality said to be good. Tree thornless, foliage peculiar. Imported. Maltese Blood. — Medium, round ; pulp of a blood- red color. This appears in the form of flakes when the fruit begins to ripen, which gradually increase until the entire pulp is colored. Prolific; strong grower; thornless; foliage peculiar. Imported. Navel.* — Synonyms, Umbilical, Bahia, Emhiguo. — Large, round ; skin smooth ; nearly seedless ; pulp melting ; in quality the best grown. Bears a peculiar umbilical formation on the summit or blossom end of the fruit. Tree bears young, not as prolific as some sorts ; thorn- less ; foliage peculiar. Imported. 106 MANVIIiLE.S TREATISE ON St. Michael's. — Medium-sized, round, thin-skinned, nearly seedle!^s, and juicy. Quality good. Tree bear? young, prolific ; few thorns ; foliage dis- tinct. Imported. St. MichaePs Egg. — Large, oval, thick-skinned, juicy, but not rich. Quality fair. Tree prolific ; few thorns. Imported. MediteiTaiiean Sweet."^ — Medium sizp, skin smooth, pulp melting. Quality best. Tree thornless and bears young ; foliage peculiar. Imported. Sweet Seville. — Synonyms, Sugar Sweet, Golden Angel. — Small, thin-skinned, tender, juicy, very sweet and delicious. Tree prolific, vigorous, somewhat thorny. Native seedling. CLASS IV. — Leading Varietiex of Superior Excellence, Practically Indidingahhahle, mmtly of Native Origin, hut Including some Foreign Varieties Long Groivn, and Thoroughly Tested in the State. This Class In- cludes most of the Best Varieties of the Justly Celebra- ted Florida Orange. The Characteristics of the Sev- eral Varieties Differ Little from the Common Type. Arcadia. — Size large ; fi)rm somewhat flattened ; skin smooth ; grain coarse, pulp melting, juice slightly sub- acid. Quality good. Tree prolific, vigorous, somewhat thorny. Native seedling. ORANGK CULTURE. 107 Creole. — Large, round, firm skin, juicy. Qiiiility good. Tree prolific, vigorous, somewhat thorny. Imported. Homosassa.* — -Size about medium, somewhat flat- tened, very heavy, color bright ; skin very smooth, thin, tough and dense; pulp fine, sweet, and juicy; flavor full, vinous and sprightly; membrane covering seg- ments of pulp very thin and small in quantity ; ripens very early and keeps and carries well. Quality best. Tree prolific, vigorous and very thorny. J^ative seedling. Nonpareil.* — Size above medium, somewhat flat- tened, color ordinary, grain fine, pulp melting and ten- der, juice sub-acid and vinous. Quality best. Tree prolific, vigorous and very thorny. Native seedling. Peerless.* — Synonym, Remberfs Best. — Large ; round ; color light clear orange ; skin smooth, firm and thin; juicy; juice sub-acid; flavor delicious. Quality best. Tree prolific, vigorous, and very thorny. Native seedling. Tahiti. — Large size, round, pale yellow, skin very thin, grain fine, pulp tender and melting, juice sub-acid. Quality good. Tree vigorous, prolific, and very thorny. Imported. Dlimmit. — Large, bright, juicy, sweet, sugary ; a first-class orange, except the skin is thin and tender, which renders it difficult to ship. Native seedling. 108 MANVILLE'fs TREATISE ON HiggillS. — Medium, fair ; skin smooth and thin ; pulp fine, juicy, sweet and excellent. Native seedling. Osceola. — Size large, slightly flattened, skin smooth and glossy, grain coarse, pulp rather melting, juice sweet. Quality good. Tree vigorous, somewhat thorny. Native seedling. Beach's No. 3. — Size medium, shape flattened, color light orange, pulp tender, juice sub-acid. Quality good. Tree vigorous, somewhat thorny. Native seedling. Excelsior. — Medium sized, round, sweet, delicious, slight pine-apple flavor. Quality good. Tree vigorous, few thorns. Imported. Magnum Boniim.*— Size large to very large ; flat- tened ; color light, clear orange ; skin smooth and glossy ; grain fine, tender, and melting ; fruit heavy and juicy ; juice sweet, rich, and vinous. Quality best. Tree prolific, vigorous, and very thorny. Native seedling. 01(1 Viui. — Synonyms, Beach's No. 4 and Buna Vista. — Size above medium, slightly flattened, color dark orange, skin rough, grain coarse, pulp melting, juice sub-acid and remarkable for a sprightly vinous property. Quality good. Tree prolific, vigorous and somewhat thorny. ' Native seedling. ORANGE CULTURE. 109 Acis. — Large, roundish orate. Quality good. Tree strong growing. Imported. Dixon. — Fine large orange, first-class, good shipper. Native seedling. Spratt's Harmon. — Excellent every way. Said to be very prolific. Native seedling. Parson Brown. — Large, .sweet, juicy, fine. Said to be excellent. Native seedling. CLASS V. — Imported Varieties not yet Thoroughly Tested in Florida. The Descriptions are Given as Re- ceived and Cannot he Vouched for. Botelha. — Said to be superior, with thin rind and rich pulp. Apparently differs little from native varie- ties. Exquisite. — A thin rinded, rich and juicy fruit. Sustain. — Large and remarkable for its sweet juices. Acapulco. — Recently from California. Said to be large and fine. A strong grower. Jaffa. — Recently from Syria, bearing the name of a city of that country. Said to be one of the best on the Eastern Mediterranean. Dulcissiina. — Synonym, Dulcis. Small, very sweet, generally seedless ; prolific. Well-known in Paris. Prata. — Synonym, Silver Orange. Rind pale yellow and thin, flesh-pale, flavor piquant and delicious. no MANVILLE'S TREATISE ON White. — Large, pale yellow, flesh-pale, flavor rich and good. NicJiras^ua. — A California variety recently intro- duced, said to be large and fine. Portugal. — -Recently introduced by way of Cali- fornia, where it has not been fruited long enough to de- termine its quality. Tree vigoi-ous. Queen. — See Portugal. Rio. — See Portugal. THE BITTER ORANGE, {Citmis bigaridia.) The Bigarade, Seville, or Bitter Orange, is distin- guished from the Sweet Orange by the lighter color of its foliage, spiny branches, and broader winged leaf- stalks. Flowers very white and sweet-scented. Fruit round, rough, of a dark reddish yellow color, filled with a sour or bitter pulp. It is the hardiest of all the species. Many varieties are cultivated in Europe, chiefly for the perfume obtained from the flowers. Sour.'^'^Large, color dark, grain coarse, inner rind bitter, juice acid. Retains its perfection through the summer, when it is much j)rized for its refreshing acid juice. Used also i'nv making marmalade and conserves. The tree bears young, very jjrolific, vigorous ; makes a desirable and ornamental shade tree. Native wild orange of Florida. Bitter Sweet.* — Medium sized, juice sweet and pleasant when separated from the inner bitter rind. Used in summer as a substitute for the sweet fruit. Tree indistinguishable from the above. Native wild oranye of Florida. ORANGE CULTURE. Ill Yaricgated. — Leaves and fruit mottled with white, pale straw color, and several shades of green. Highly ornamental. (irOldeu Variegated. — Leaves mottled with a rich golden color. Very ornamental. Myrtle-Leaved. — A handsome dwarf tree, with small, dense, dark green, glossy leaves ; bearing a small flattened fruit of little use. A beautiful shrub for orna- mental grounds. Citrus Japoilica. — Synonym, Dwarf Orcuige. An ornamental dwarf tree resembling the sour orange. Fruit resembles the sour, though not nearly so bitter, and is esteemed for preserving. Caimsa. — Foliage very peculiar. Leaves narrow at the base and widening slightly their entire length. The Mandarin Orange, (C. nob'dis.) It is regarded by some botanists as a distinct species, and by others as a marked variety of the Sweet Orange. It is also called the Tangierine Orange. The Mandarin, or Mandarin Orange, is a very beau- tiful tree, distinguished by its small, lanceolate leaves ; slender, flexible branches; dwarf and somewhat formal habit of gi'owth, and the aromatic odor of the fruit and foliage. The flowers are white and smaller than those of the Sweet Orange. The fruit is small, flattened, of a deep saffron color, with loosely adherent rind. It is very highly esteemed in the markets of Europe. China.* — Svnonym, Willow-Leaved. Small, flattened, deep yellow color, skin thin, skin and segments loosely adherent, flesh dark orange color, spicy and aromatic. Tree dwarf, leaves young, prolific, vigorous ; willow- like foliage, having few thorns. 112 MANVILLE'S TREATISE ON St. Michael's. — Fruit slightly pear-shaped, in other respects resembling the China. Bijou.* — Synonyms, Moragne's Tangierine, Dancy's Tangierine. Fruit a little larger than the China, which it resembles, except in its deep crimson color. Tree unlike the other varieties, resembles the Sweet Orange in size and foliage, though it retains the aroma peculiar to the species, thorny. A seedling identical with the parent tree first received the name Bijou. Satsuma.* — The fruit is medium sized, flattened, deep orange color, smooth, thin skin, which is sweet, aro- matic and easily detached from the pulp. Color of pulp dark orange ; segments part freely ; fine grain, tender, juicy, sweet and delicious. There is none of that peculiar I'ank odor which characterizes most other varieties belonging to the same class and species. The tree is thornless, the leaves peculiarly thick, lan- ceolate, serrated medium, pitiole, linear ; and the fruit is seedless. New and desirable. The Lemon, (C. limonum.) Trees of straggling, irregular habit ; foliage light green ; leaf-stalks wingless, shoots purple, flowers tinged with violet externally ; fruit oblong, pale yellow, with swollen point, and acid pulp. Bijou. — Very small, smooth, thin skinned, juicy ; acid fine. Foliage distinct. Everbearing. — Quality fair ; bears constantly, and on this account, very desirable for home use. Sicily.* — Size medium ; rind sweet ; skin smooth, thin, tough and dense ; membrane covering segments of l)ulp thin and small in quantity ; pulp juicy ; acid fine; ORANGE CULTURE. 113 quality best. Not a Florida raised seedling, but the genuine imported lemon of commerce. Bergamot. — Large, rough, flattened ; quality fair ; leaves large and broadly winged ; appearance peculiar. Erroneously introduced under the name of Bijou. French's Seedling.* — A native variety fully equal to the imported Sicily, which it closely resembles. Tree has very few thorns. Eureka.* — Recently introduced from California ; of medium size, with sweet rind and strong acid. Tree thornless ; strong grower ; early and prolific bearer. Genoa. — Imported by way of California, where it is esteemed one of the best. Desci'iption similar to Eu- reka. Lisbon. — Imported by way of California. Said to be of good quality, though not as highly esteemed as the foregoing. Imperial. — Imported from Europe and highly rec- ommended. Lamb.* — A native variety resembling the imported Sicily. One of the best. Villa Francha. — Recently imported from Europe and highly recommended. Willow-Leaved. — Recently imported i'rom Europe. Said to be superior. Leaves lanceolate ; branches flexi- ble with willow-like appearance. Sweet. — Same as Dulcis or Sweet Lime, q. v. Variegated. — Leaves mottled with Avhite, pale straw color and several shades of green ; fruit said to be su- perior. Very ornamental. 114- MANVrLDE'S TREATISE ON" The Lime, ( C. limetta,) A shrub, with small ovate leaves and spreading prickly branches ; flower small and entirely white, fruit small, roundish pale yellow, with a slight protuberance at the end. Florida.* — Medium sized, skin thin and smooth, acid juice rich and abundant. Best for general culture. Sweet. — Synonym, Dulcis. Large, thick skinned ; pulpy; juice insipidly sweet. Valued only for variety and for preserving. Foliage peculiar. Persian. — Imported. Said to be superior. The Citron, {C.medica.) An irregular, branching, strong-shooting tree, with full head ; shoots purplish ; leaves large, thick, oblong, wingless, and toothed ; flowers tinged with violet ex- ternally; fruit very large, warted, and furrowed; rind white, fragrant, and very thick ; pulp sub-acid. Lemon.* — Very large, shape like the lemon ; skin irregular and glossy ; inner skin thick, spongy and aro- matic. The Shaddock, (C. decumana.) A strong-growing tree, with thick spiny branches, distinguished by its large leaves and broadly-winged leaf-stalks. Flowers large and white. Fruit very large, globular, of a pale yellow color. Mammoth.* — Very large ; skin smooth and glossy ; rind thick, white, spongy, and bitter ; pulp green, watery, and sub-acid. Blood. — Same as above, with blood-red pulp. ORANGE CULTURR 11.5 PoniolO.* — Synonym, Grape Fruit. It i« classed by some as a distinct species, (C Pompebnouse.) It is un- doubtedly a variety of the Shaddock, Size small ; skin smooth ; color pale yellow ; pulp sub-acid and refreshing, MISCELLANEOUS. The following do not belong to any of the foregoing species. Bergamot. — Known also as the Berganiot Orange or Bergamot Lemon, probably a hybrid. Fruit pear shaped ; pale yellow, with green sub-acid ; firm, fragrant pulp ; fruit and foliage distinct. Grown in Europe, where the fragrant oil of Bergamot is obtained from the rind. Otaheite. — A dwarf variety, bearing an abundance of reddish flowers, and small, showy fruit ; sweet and thin skinned. A pretty ornamental shrub, attracting considerable attention as a stock upon which to dwarf the sweet orange. Kumqiiat.* — A small species, much cultivated in China and Japan. The plant is a shrub, sometimes six feet high, but in cultivation is not allowed to exceed the height of a gooseberry bush. The fruit is oval, about the size of a large gooseberry ; the rind is sweet and the juice acid. It is delicious and refreshing. The Chinese make an excellent sweet-meat by preserving it in sugar. Desimatus. — One of the curiosities of the Citrus. Foliage peculiar ; leaves of drooping habit ; has the appearance of being varnished ; no two leaves alike in shape ; fine for ornamental grounds. lie MANVILLE'S TREATISE ON DWARFING THE ORANGE. The Florida Dispatch, for May 29, 1882, contained the following editorial : BEARING, DWARF ORANGE TREES. A few days since, we accepted the kind invitation of our friend, Dr. C. J. Kenworthy, of this city — a gentle- man very widely and well-known for his enthusiastic and persevering devotion to all matters of scientific and practical value and interest — and visited his garden, especially to see the very beautiful and rare collection of Dwarf Orange trees, which he has in full bearing. These niinature trees, ranging from two and a half to four and five feet high, are mostly of perfect form ; branching near the ground, limbed out symmetrically, and presenting, generally, the shape of an obtuse cone — the true form for all fruit trees, in this climate. It is about twenty-two (22) months since these little bearing trees were budded ; and they are now carrying each, from ten, fifteen and twenty up to forty beautiful oranges, larger and farther advanced toward maturity than those of the same varieties on older standard trees overhead ! The foliage on these Lilliputians of the citrus family is also larger, thicker and darker in color than that of the ordinary sweet orange trees growing around them ; and they present an air of thriftiness and vigor which we were at first disposed to refer to the liberal use of fertilizers and extra care and cultivation. Dr. K. assured us, however, that such was not the fact ; and stated that all his trees — dwarfs and standards — have been treated precisely alike, and that there are no favored, forced, or pampered ones among them. And now the reader will naturally ask — " cui bono f and " How are these little, precocious trees produced ?" We ORANGE CULTURE. 117 shall answer the last question first, and tell how the Doctor propagates his early-bearing Dwarfs : Most green-house men, and a few " outsiders," know a little, pendulous, tortuous and drooping pot-plant of the orange family, called the Otaheite. We have had it for a number of years, sometimes in the open ground and sometimes in-doors, but nowhere " to do much good," and had almost forgotten its existence until we visited Dr. K.'s garden. We are now disposetl to " alter our figures" in regard to this variety, and to give it a high place among the " stocks " of Florida nurserymen and amateur pomologists. In short, what the " Paradise " and " Doucin " are to the apple ; the quince, sloe and hawthorn to the pear ; and the mahaleb to the cherry, the Otaheite will, we believe, prove to the orange, the lemon and their congeners ; and the only question in the near future is, how to procure these " stocks " in suf- ficient quantities to supply the demand for Dwarf Orange trees, which is sure to spring up as soon as the novelty- loving public see them. Leaving this to the enterprise of our friends, Bidwell, Manville, Beach, and others, we will try to describe the simple and easy mode by which Dr. Kenworthy produces these little pets of the garden and the grove. He plants out a number of the Otaheite shrubs or trees in a fair soil ; and, at the proper season, i. e., when they are making a vigorous growth — he carefully layers (in the usual way) every available limb or branch. When these layers show signs of growth, he buds into them, (very near the ground,) such varieties as he desires to propagate ; and, w hen the buds start, he does not cut off the stock above, but ties a ligature of cord or fine wire around and near the top of the stock, retaining the leaves to assist in nourishing and pushing forward the young bud. If this budding is done very early, the 118 MANVILLE'S TREATISE ON bud will make several " growths " during the first sea- son, and the little tree will be large enough to trans- plant the following fall or winter. When thus removed, the dwarfs may be planted six or eight feet apart — (the Doctor's are only five feet) — and they will afterwards require no more care than any good orange-grower be- stows upon the trees in his garden or grove — though we confess we should be tempted to give the little felloAvs, " early and often," an extra handful of bone-dust, etc., just to see them spread out near the ground, bourgeon, blossom and don their " golden apples ! This " spread- ing near the ground." by-the-way, is something greatly under the control of the gi'ower ; who, if he under- stands the theory of "pinching back," or " pruning with thumb and finger," (as set forth in Barry's " Fruit Gar- den," and similar works,) may easily give the young tree any shape he desires, without ever using his knife or pruning-shears. The short and almost hidden trunk or stem of these little orange trees, with their' dense, rounded, solid masses of large, shining, dark green leaves, studded plentifully with ripe Mandarins, Homo- sassa's, Magnum Bonum's, Nonpareil's, Old Vini's, or other choice varieties (which a child could gather with- out standing on tip-toe,) would surely be one of the most charming "pomological exhibitions" which it is possible to imagine ! And now for the more practical, dollar-and-cent side of this " new departure " in orange culture : 1. It expedites the hearing of the orange, so that the great "Bug-Bear" of all new-comers — " having to wait so long for the trees to come into bearing " — is com- pletely vanquished. With a few hundred of these dwarfs in his garden or grove, certain (with good care,) to produce large crops of superior fruit in two or three years, the settler, could wait, hopefully and patiently. ORANGE CULTURE. 119 for the larger "seedlings" to mature, and feel that he had achieved some pleasant and profitable results, with- out spending a lifetime in expectancy. 2. The amateur or city resident, of limited space, who desires to test many sorts and varieties, may plant these dwarf trees four or five feet apart, (or even closer,) in a corner of his garden, and derive from them all the satisfaction enjoyed by the cultivator of many broad acres. 3. There could be no more perfect blending of the utile cum dulce than borders and groups of these lovely little trees, full of fruit, scattered around the gardens and grounds of the numberless lovely homes on St. John's River ; in the lake region ; along the Gulf coast, and in many other portions of " fair Florida !" 4. Should there be any danger to the tree or fruit from a " nipping and eager " frost, these little trees could be perfectly protected by turning over them a sugar hogshead, or wrapping a blanket around them. 5. As " selling stock " for our Florida nurserymen, they would prove, at once, a perfect " Bonanza." Trees large enough to bear twenty to fifty oranges, could be grown in fourteen or sixteen inch pots, packed in small space, and shipped, per express, with the fruit all on ! Such souvenirs of Florida as these, no " tourist " could resist, and the demand for them in the winter, would be something "truly awful !" They could, also, be propa- gated very largely here, in the open ground, then potted and sent to the North, in the fall, for stocking conserva- tories and green-houses. Other uses for these pretty trees may suggest them- selves to the reader, but we will close for the present ; merely remarking that Dr. Kenworthy has no trees, roots or stocks to dispose of, and that he does not spec- 120 MANA^LLE'.S TREATISE ON ially desire to be troubled with any correspondence on the subject. The following communication appeared in the same journal June 12, 1882: MORE ABOUT THE DWARF ORANGE TREE, Editors of the Florida Dispatch. I was gratified to find that my experiment in dwarf- ing the orange met with your approval ; and I am dis- posed to add a few remarks to what you have already stated. The propagation and cultivation of my orange bushes is a mere practical application of the principles published by my old friend Thomas Rivers, of Saw- bridgeworth, England, in his work entitled the " Mini- ature Fruit Garden ;" written to guide cultivators in the culture of dwarf pears, apples and cherries. I, experimented with several stocks, and finally de- cided to adopt the Otaheite. Its roots are fibrous and plentiful ; and in its earlier stages of growth it is like the Paradise or Doucin stocks, very vigorous ; but soon settles down to business. My bushes are grown on sandy soil, with a subsoil of pure white sand. For four years the land was used as an asparagus bed, and during that period it received but one light dressing of manure. On the same land, six years ago, I planted standard orange trees sixteen feet apart, and my bushes are grow- ing between them five feet apart. You, Mr. Editor, will certainly agree with me, that my bushes have not been fairly treated. If my bushes had been planted in new and fertile soil, I feel assured that the product of the first year would have been much greater. I have raised from seed a truly Lilliputian variety of the orange, and I have reason to believe that it will super- sede the Otaheite as a stock for bushes. Some of your readers will cry out cut bono, and ridi- ORANGE CULTURE. 121 cule orange bushes, as English gardeners ridicule Riv- ers' apple bushes ; but to-day apple bushes have become an institution, and produce larger and finer apples than can be gathered from standard trees. This morning I carefully examined my orange bushes, and I will perse- cute you with figures : The bushes are 20 in number. Thirteen out of the 20 are in fruit. Number of fruit on bearing bushes is: 80, 79, 41, 35, 20, 17, 16, 10, 10, 4, 3, 3, 1. Average number of fruit on bearing bushes, 24. Average number of fruit on bearing and nou-bearing bushes, 155. Distance of bushes apart, 5 by 5 feet. Number of bushes per acre, if planted 5 by 5 feet apart, 1,742. Product per acre first year of bearing on average of 15 J per bush, 26,000. Twenty -six thousand oranges at $15 per 1,000, $390. All who are conversant with the culture of dwarf apples, pears and cherries, will admit that they are pro- ductive and profitable, and my limited experience with my bushes, leads me to believe that they will produce large crops at an early day. As it may possibly inter- est some of your readers, I will furnish a few facts in connection with the Otaheite orange. According to Risso and Poiteau, it was introduced into France in 1815, by M. Noisette, a Parisian nursery- man. It is dwarf in habit, almost thornless, branches pendulous, roots fibrous, leaves very smooth and glossy, four inches in length by one and three-quarters broad, leaves concave on upper surface from side to side, ab- sence of leaflet on petiole. The fruit is small, being about one inch and three- quarters in length, by one and a third in diameter; with 122 MANVILLE'S TREATIWE. prominent rumpled knob or tubercle at calyx end ; sur- face of fruit strewn with small, irregular impressions ; skin thin and charged with a pungent essential oil ; flesh deeper in color than the skin ; juice very unpleas- ant, resembling a mixture of the juice of the lime and bitter orange of Seville. C. J. Kenworthy. 1^ <«w ^.. ^cM' c/'*