The Mazzard, or at least the Sweet Cherry, has probably been more or less used as a stock since the earliest cultivation of this fruit. The Greeks and Romans practiced budding and grafting centuries before Christ's time and when the cherry came to them as a domesticated fruit, at least three or four centuries before Christ, they undoubtedly made use of budding and grafting40 to maintain varieties and in the case of the Sour Cherry, if they had it, and they probably did, to avoid the suckers that spring from the roots of the trees. The literature of fruit-growing is scant and fragmentary during the Middle Ages but beginning with the herbals in the Sixteenth and Seventeenth Centuries there are many treatises on fruits and botany and in several of these the use of the wild Sweet Cherry, the Mazzard, is mentioned.41

In America the Mazzard as a stock probably came into use soon after the establishment of Prince's nursery at Flushing, Long Island, about 1730, budding and grafting seeming to have been little practiced in the New World before the founding of this nursery.42 The use of the Mazzard as a stock is mentioned probably for the first in Coxe's Fruit Trees,43 the second American treatise on fruits, published in 1817, and again in Thacher's American Orchardist, published in 1822.44 Both authors, as the foot-notes show, speak of the use of this stock as if it were in common use in American nurseries. Neither mentions the Mahaleb.

The Mahaleb, Prunus mahaleb, it will be remembered from the description previously given, is a bush or bush-like cherry, sometimes but not often attaining the height and port of a tree. The top is thick, with rather slender ramifying branches bearing small, green, smooth, glossy leaves, which resemble those of the apricot more than they do the leaves of either species of orchard cherries. The fruits are at first green, then yellowish, turning to red and at full maturity are shining, black and so hard, bitter and astringent as to be scarcely edible. This brief description of Prunus mahaleb shows that it is quite distinct from either our commonly cultivated Sweet Cherry, Prunus avium, or the Sour Cherry, Prunus cerasus, differing from either much more than the two edible species differ from each other. It is quite as far removed from the Sweet or the Sour Cherry botanically as the apple is from the pear, the quince, or the thorn and if anything more distantly related than orchard cherries are to plums. One would expect the wood structure of the Mahaleb to differ from that of Sweet or Sour Cherries very materially and that even if the union proved in budding or grafting wholly normal that there would be some difficulty in the proper passage of nutritive solutions between stock and cion. This cherry, as we have seen, is propagated almost entirely from seed though it may easily be grown from layers, cuttings and suckers. The American supply of Mahaleb stock comes from France.

The Mahaleb seems to have come into use as a stock for other cherries in France having been first mentioned for this purpose by Duhamel du Monceau in his Traite des Arbres Fruitiers in 1768.45

Miller in his Gardener's Dictionary, 1754, describes the Mahaleb cherry and says it was "Cultivated in 1714 by the Duchess of Beaufort." This seems to be the first mention of its culture in England though Gerarde in The Herball or Generall Historie of Plantes describes it. Neither mentions its use as a stock. In fact, it seems not to have been mentioned as a stock in England until 1824 when Loudon in the Encyclopedia of Gardening speaks of it as "the most effectual dwarfing stock."46

It was not until after the middle of the Nineteenth Century that the Mahaleb came into use in America, none of the horticultural writers in the first half of the last century, as Cobbett, 1803; McMahon, 1806; Coxe, 1817; Thacher, 1822; Prince, 1828; Kenrick, 1833; Manning, 1838; Thomas, 1846; Floy, 1846, nor Cole, 1849, having mentioned the Mahaleb though nearly all speak of the Mazzard as the stock upon which cherries are budded. Downing, in 1845, makes first mention of the Mahaleb as a stock in the New World;47 Thomas in his second edition, 1851, recommends it as a stock to dwarf cherries;48 Barry, 1852, says that Mahaleb stock is imported from Europe;49 while Elliott, in 1854, also speaks of it as a dwarfing stock.50 From this date on the Mahaleb is mentioned in all American works on pomology in which stocks for cherries are discussed.

Pains have been taken to show the exact date the Mahaleb began to be used as a stock in America. The quotations show that this was about 1850. They show, too, that at first and for a long time its only use was as a dwarfing stock. But now the Mahaleb has almost wholly superseded the Mazzard as a stock for all Sweet and Sour Cherries. Not many cherries were propagated on the new stock until after 1860 when its use, if we may judge from the accounts of fruit-growing, began to be general and it grew so rapidly in favor that by 1880 it was more popular than the Mazzard and in another decade had almost wholly taken the place of the latter. Probably 95 per centum of the cherries grown in this country are budded on the Mahaleb. Why has the Mahaleb supplanted the Mazzard? This is the question that immediately comes to mind and to the discussion of which we proceed.

There is no question but that it is much easier to grow cherry trees on Mahaleb stock in the nursery than on Mazzard and that usually a better looking tree can be delivered to the fruit-grower on the first-named stock. Seedlings of both stocks are imported from Europe and those of the Mahaleb are usually cheaper. These reasons are sufficient for the exclusive use of Mahaleb by nurserymen, and, were it certain that the Mahaleb is the best stock for the fruit-grower, all hands might forthwith renounce the Mazzard. In what respects is it easier to grow cherries on the Mahaleb in the nursery than on the Mazzard?

All know that the Sweet Cherry is a little difficult to grow—is capricious as to soils, climates, cultivation and pruning, and as to diseases and insects. The Mazzard now used for stocks has the faults of the species to which it belongs. The Mahaleb, on the other hand, is adapted to a greater diversity of soils; is hardier to either heat or cold; less particular about cultivation; will stand more cutting in the nursery if pruning be necessary; is less susceptible to aphids which in many parts of the United States trouble cherries in the nursery row; and, more to the point than all else, in New York at least, is not nearly as badly infested with the shot-hole fungus, Cylindrosporium padi, which often ruins plantations of Mazzard stock. Mahaleb stock, too, is more easily "worked" than the Mazzard both in the actual work of budding and in having a longer season for this nursery operation. Cherries on Mahaleb ripen their wood earlier than those on Mazzard and may thus be dug earlier in the fall.

Nurserymen and fruit-growers alike agree to this statement of the superior merits of the Mahaleb as a nursery plant. The facts set forth are matters of common observation—so well known that it is not necessary to verify them experimentally. A half-century of experience in America on many soils, in many climates and under widely varied conditions has demonstrated that it is easier to grow cherries in the nursery on the Mahaleb than on the Mazzard stock.

From experience in the orchard, fruit-growers have established several facts as to the relative value of Mazzard and Mahaleb stocks from their standpoint. These are:

1. Cherries on Mahaleb are hardier to cold than those on Mazzard stocks. This hardiness is due, in part at least, to the fact that cherry wood on Mahaleb ripens sooner than on Mazzard. This superior hardiness of the Mahaleb is evident in the nursery-row as well as in the orchard and is a matter of great importance in northern nursery regions. In this connection it should be said that the Mahaleb is not as hardy as might be wished and that there are, as we shall later show, still hardier stocks.

2. There is no question but that the Mahaleb is a dwarfing stock. It came into use and in Europe continues to serve almost the sole purpose of dwarfing varieties worked upon it. This retarding effect is not fully realized by American cherry-growers because for the first few years the diminution in size is not apparent and even at the close of a decade the difference in size is not as marked as it would be between standard and dwarf apples or pears of the same age.

3. Cherry-growers who have tried both stocks agree that most varieties come in bearing earlier on Mahaleb than on Mazzard stocks. From the known effects of dwarfing on other fruit trees this would be expected.

4. The size of the cherries is the same on trees grown on the two stocks. The claim is made that apples and pears are a little larger on dwarf trees and that when peaches and plums are dwarfed the fruit is smaller. No one seems to have seen or to have thought that there are differences in the size of cherries grown on Mazzard or Mahaleb stock.

5. Better unions are made with Mazzard than with the Mahaleb. This would be expected because of the close relationship of the Mazzard to orchard cherries.

6. The Mahaleb is probably the more cosmopolitan stock—will thrive on a greater diversity of soils than the Mazzard stock. In particular it is somewhat better adapted to sandy, light, stony, and arid soils that are not well adapted to growing cherries. Its root system is much nearer the surface of the ground and it is, therefore, better adapted to shallow soils than the Mazzard.

7. Though the evidence is somewhat conflicting on this point it is probable that cherries on Mazzard live longer than on Mahaleb. It may be that the frequent statements to this effect arise from the knowledge that dwarf fruit-trees are generally shorter lived than standard trees since there seem to be no records of actual comparisons.

8. Lastly, in climates where the cherry can be grown with reasonable certainty and in soils to which this fruit is adapted, varieties on Mazzard are more productive and profitable than on the Mahaleb stock. This seems to be the concensus of opinion among growers in the great cherry regions of California, Oregon, Washington, Michigan and New York.

Several other stocks have been more or less successfully used for cherries and a great number have never been tried that might make good stocks. In a country as diversified as ours and in a state as variable in soil and climate as New York and with the manifold varieties of Sweet and Sour Cherries, it is almost certain that under some conditions there are stocks more desirable than either Mazzard or Mahaleb. The resources of the cherry-grower in this direction are so great that in this account we can but briefly outline them, describing but a few of the many stocks that might be used.

In the colder parts of New York and of the United States, undoubtedly seedlings of Russian cherries would make hardy and in most other respects very desirable stocks. These Russian cherries, too, as a rule, come nearly or quite true to seed, making very good orchard plants on their own roots. Some of them, if not most of them, sprout rather badly—not so serious a fault as one might think, especially in a cultivated orchard. For budding over to other varieties only sour sorts should be used, taking for trial such varieties as Bessarabian, Brusseler Braune, Double Natte, George Glass, Lutovka, Early Morello, Ostheim and Vladimir. Probably most of these would dwarf standard varieties more or less but in no case is it to be supposed that they would have the dwarfing effect of Mahaleb. In the North Mississippi Valley some of these, especially of the Ostheim or Morello type, have been very successfully used as stocks.

The small, wild, red cherry locally known as the Bird, Pin and as the Pigeon Cherry, Prunus pennsylvanica, found from the Atlantic to the eastern slopes of the Coast Range on the Pacific in northern United States and southern Canada, is often used as a hardy stock. The writer has seen it so used in northern Michigan but from his observation can recommend it only for cold regions and as a makeshift since it dwarfs standard varieties and usually suckers badly. W. T. Macoun, Ottawa, Canada, Dominion Horticulturist, states that this stock is commonly used in the colder parts of Canada and with good results. This cherry is not as distantly related to orchard varieties as the Mahaleb and unites with Sour Cherries at least as readily as does the Mahaleb.

In the West and Northwest the Sand Cherry, Prunus pumila, is used very successfully in cold, dry regions as a stock for Sour Cherries. The following is a very good account of its behavior from the pen of the late Professor J. L. Budd, a pioneer cherry grower in the Middle West.51

"Those who have seen acres of the Sandy Cherry in the northwest loaded with fruit have not been ready to believe it a good stock for the cherry on account of its sprawling bushy habits of growth. But those who have watched its growth when young under culture on rich soil can comprehend the fact that it is as easy to work as the Mahaleb. As with the Mahaleb the seedlings grown in seed bed will be large enough to set in nursery row the next spring, and of good size for August budding. To illustrate its rapidity and uprightness of growth I will state that we rooted a few cuttings in plant house last winter. When set in nursery they had made a show of growth of from two to four inches, yet at budding time, the middle of August, they were fully as large, stocky and upright as the Mahalebs, and in all respects in as perfect condition for budding.

"This hardiest of all cherries is very closely related to our garden cherries, so nearly indeed that our botanists long ago decided that valuable crosses on it might be made.

"As yet its use for stocks is somewhat experimental, but we can say positively that it united well with our hardy sorts in budding, and it does not dwarf the sorts worked upon it to a greater extent during the first five years of growth than does the Mahaleb."

There are records of the Choke Cherry, Prunus virginiana,52 and of the Rum, or wild Black Cherry, Prunus serotina, having been used as stocks but these long-bunch, or racemose, cherries are so distantly related to the short-bunch, or fascicled, orchard cherries that it would seem that their use would be desirable only under great stress.

In Japan a horticultural variety of Prunus pseudocerasus is used as a stock. Of this cherry for this purpose, Professor Yugo Hoshino of the Tohoku Imperial University at Sapporo, Japan, writes as follows:

"You wish to know about the cherry stocks used in this country. It is very rare to use our common wild cherry as a stock for European cherries. In Hokkaido (Yozo Island), we commonly use the seedlings of European Sweet and Sour Cherries as stocks. But in the northern part of Japan proper (Main Island), it is a common practice to graft European cherries on a special kind of our cherry. This cherry has particular characters which fit it for propagation; namely, it roots very easily either from cuttings or by layering (mound). Its botanical position is not certain, but it is probable that it is a cultural variety of Pseudocerasus, especially bred for stock purposes. It is grown by nurserymen only and called Dai-Sakura. (Dai means stock: Sakura means cherry.) It has a somewhat dwarfing influence on cions and hastens their fruiting age."

This stock ought to be tried in America if, indeed, it is not already under cultivation from introductions made by the United States Department of Agriculture.

These are but a few of many cherries that have been or might be tried as stocks for orchard varieties. There are many species of cherries more closely related to the cultivated edible sorts than the Mahaleb. Many of the cherries from Asia, not now known to growers, will eventually find their way to America; a few have already been introduced by the United States Department of Agriculture; some of them can undoubtedly be used as stocks and from them we may hope to find a better stock than either the Mazzard or Mahaleb.

Cherries are now grown almost wholly as budded trees but they can be more or less readily root-grafted, depending upon the variety. Under some circumstances it might be profitable to propagate them by grafting. Usually it is necessary to use a whole root and to graft at the crown of the stock. Budd recommends this practice for Iowa, using Mazzard stock but with the expectation that the cion will take root and eventually the tree will stand on its own roots.53 We cannot believe, however, that grafting can ever take the place of budding as a nursery practice or that it can be profitably used except in very exceptional cases.

Buds in propagating are usually taken from nursery stock, a practice of decades, and there is no wearing out of varieties. Old varieties have lost none of the characters accredited to them a century, or several centuries, ago by pomological writers. Nor does it seem to matter, in respect to trueness to type, whether the buds be taken from a vigorous, young stripling, a mature tree in the heyday of life or some struggling, lichen-covered ancient—all alike reproduce the variety. The hypothesis that fruit-trees degenerate or, on the other hand, that they may be improved by bud-selection, finds no substantiation in this fruit. There seems to be no limit to the number of times its varieties can be propagated true to type from buds.

CHERRY CLIMATES AND CHERRY SOILS

Climate and soil have been the chief determinants of location for cherry-growing in New York. Both Sweet Cherries and Sour Cherries are profoundly influenced by the natural environment in which they are grown—Sweet Cherries rather more so than any other fruit, either climate or soil dictating whether they may or may not be grown.

The Sour Cherry is at home in a great variety of climates, the vagaries of weather affecting it but little. It is probably the hardiest to cold, in some of its varieties at least, of all our tree fruits, thriving almost to the Arctic Circle and from there southward, in some of its forms, quite to the limits of the Temperate Zone. The blossoming season is relatively late so that fruit-setting is seldom prevented by spring frosts. Yet, even with this hardy fruit, it is necessary to take thought of heat and cold in growing commercial crops; for spring frosts may wither the bloom or summer heat and wind blast the crop if the orchard site be not well selected as regards local weather.

The Sweet Cherry, on the other hand, must be coddled in every turn of the season, in climatic requirements being particularly sensitive to heat and cold. This cherry stands with the peach in not being able to survive temperatures much below zero and in suffering greatly from spring frosts because of early blooming. It is even more susceptible to heat than the peach, and especially cannot endure long-continued heat, both fruit and foliage suffering. The Sweet Cherry is at its best in a warm, sunny, genial, equable climate. The Duke cherries, hybrids between the Sweet and the Sour species, in the matter of hardiness are midway between the hardy Sours and the tender Sweets though this is but a very general statement applying to the group as a whole and not to individual varieties. Some of these withstand cold and heat well while others are tender in either extreme.

Cherries are more at the mercy of moisture than of temperature conditions. Continued rain at blossoming time will almost surely prevent a proper setting of fruit; and the cherries crack, and brown-rot becomes exceedingly aggressive if there is wet weather in harvest time. Late summer rainfall to supply moisture to the trees is a matter of small concern to the cherry-grower, for growth begins early and the crop is off the trees before summer droughts usually begin. Where irrigation is practiced water for the cherry is safely supplied at most seasons of the year except when harvest is in swing at which time the cherries will swell and crack if there be too much water.

As with all fruits the direction, temperature and humidity of winds are factors which decree whether or not cherries can be grown profitably either in a locality or a region. A pocket in the hills filled with dead air or a wind-swept highland would be unsatisfactory extremes; for, in the first case, fungi, especially the dreaded brown-rot, would take too great toll, and, in the second, blossoms would be blasted or foliage frazzled and the fruit whipped. The harsh, drying winds of winter, too, would be disastrous to Sweet Cherry culture and if extreme, as on the Great Plains, wood and buds of Sour Cherries would suffer. Artificial wind-breaks have not been found profitable in the hilly and wooded East, entailing too many disadvantages, but if cherries be planted at all in the prairies of the Middle West, some protection from the winds must usually be provided.

The two species from which cultivated cherries come grow with proper vigor in quite different soils. The Sour Cherry and most of its hybrid offspring, the Dukes, may be made to grow in almost any arable soil, but the Sweet Cherry is fastidious—to be pleased only by particular soils.

Sour Cherry orchards in New York most excel on strong, even-tempered, loamy soils, naturally or artificially well drained yet retentive of moisture. There is possibly a shade of difference in favor of clay loams and some thriving plantations may be found on stiff clays having good depth and good drainage. Wet, sticky clays underlaid with a cold, clammy subsoil—a combination all too common in Central New York—furnish conditions which defy the best of care and culture.

Sweet Cherry orchards are found excelling on lighter, and less fertile soils than those we have described for the grosser feeding Sours. Growers of Sweet Cherries conceive a perfect soil for this fruit to be a naturally dry, warm, deep, free-working, gravelly or sandy loam. If the soil is not naturally dry, it must be made so by artificial drainage, for this fruit is most impatient of too much moisture or a root-run restricted by water. In Sweet Cherry soils, as will be surmised, it is difficult to supply humus yet this must be done either by cover crops or by manure to make the soil sufficiently retentive of moisture. Sweet Cherries can be grown on other soils than those under discussion but, for a large, firm, finely finished product for the markets, only the soils described are suitable.

The conditions of soil and climate, as we have briefly defined them, that favor cherry culture are to be found in several parts of New York. Briefly we may name and describe the cherry regions of the State as follows:

The undulating, maritime plains of Long Island, covered with a thick deposit of sand, are very well adapted to cherries where the soil is rich enough to come under the plow. The genial climate, with its rather heavy rainfall, is precisely that in which the cherry thrives, the region falling short in the poorness of the soil—a fault easily remedied, where there is good bottom, by manuring. Despite the fact that occasional trees and plantations show that this fruit thrives on Long Island the cherry is not much grown here, the industry needing some leader to show the way.

The valley of the Hudson from where the river leaves the mountains on the north to its entrance into the highlands of its lower stretch is admirably adapted to cherry-growing, both climate and soil meeting the requirements of this fruit. In parts of the valley the industry has been developed, Columbia County taking first place among the counties of the State, with its 78,526 trees in 1909. The product of this region goes chiefly to the great city market near at hand. Unfortunately the standard of cultivation is low in the Hudson Valley and the handling and marketing of the crop is also on a lower level than westward in the State. The cherry harvest is earlier here than elsewhere in New York, if we except the small crop of Long Island, an advantage, for prices usually fall rather than stiffen as the season advances.

The great basin in which lie the Central Lakes of New York is far famed for its Sour Cherry industry, the product going largely to canneries. Some Sweet Cherries are grown—more and more are being planted—about these lakes; but the rich, heavy soils which mostly prevail hereabouts are more fit for varieties of the Sour Cherry; though the equable climate makes almost certain the Sweet Cherry crop on soils suited to its culture. Here, as elsewhere in the State, the acreage at this writing is greatly on the increase though it is doubtful if the advance will much longer weather the present depression in prices. All through this region, as in that to the north, the Sweet Cherry grows wild, thriving like the Biblical bay—seemingly a sheer gift of the soil and, like other gifts, generally neglected.

The high plain along the shore of Lake Ontario from the St. Lawrence River to the Niagara River, extending from the lake on the north from ten to fifteen miles inland, is the region of greatest possibilities for the cherry in New York. The climate of this great stretch of territory is nearly perfect for this fruit and the soils are sufficiently diversified to furnish a suitable habitat for any of the many varieties of either Sweet or Sour cherries. In the past there have been so many ups and downs in the cherry industry that fruit-growers in this favored belt have given more attention to other fruits but for the last decade, until the recent downward turn in the cherry market, the plantings have been greatly increased, both Sweet and Sour cherries finding favor.

Not unlike the Ontario shore in climate, but quite unlike it in its soils, is the shore of Lake Erie, the most westward topographical division of New York in which cherries are grown. The mainstay of this region is the grape, but, in seeking for a more diversified agriculture, Sour Cherry culture was introduced some twenty years ago and has become a thriving industry with prospects of continued growth. Here, as is so often the case in agriculture, credit must be given to some one leader for the development of a crop and the cherry orchards that dot the landscape for miles about the home of the late John Spencer speak eloquently of his leadership in this region.

A necessary accompaniment to a discussion of climate is a statement of the dates of blooming of the various sorts of cherries; for often, through selection with reference to this life event of the plant, injurious climatal influences may be escaped at blooming-time. In the accompanying table averages of the blooming dates of varieties of cherries for the years just past, 1912 to 1914, are given.

In making use of these dates, consideration must be given to the environment of the orchards at Geneva. The latitude of the Smith Astronomical Observatory, a quarter of a mile from the Station orchards, is 42° 52' 46.2"; the altitude of the orchards is from five hundred to five hundred and twenty-five feet above the sea level. The soil is a stiff and rather cold clay; the orchards lie about a mile west of Seneca Lake, a body of water forty miles in length and from one to three and one-half miles in width and more than six hundred feet deep. The lake has frozen over but a few times since the region was settled, over a hundred years ago, and has a very beneficial influence on the adjacent country in lessening the cold of winter and the heat of summer and in preventing early blooming.

The dates are those of full bloom. They were taken from trees grown under normal conditions as to pruning, distance apart, and as to all other factors which might influence the blooming period. An inspection of the table shows that there is a variation of several days between the time of full bloom of the different varieties of the same species. These differences can be utilized in selecting sorts to avoid injury from frost.

THE POLLINATION OF CHERRIES

We cannot complain in New York of much uncertainty in the setting of the cherry crop. Late spring frosts occasionally catch the blossoms of Sweet varieties but seldom those of the Sour sorts. Cold weather, especially if accompanied by wet weather, not unfrequently cuts short the cherry crop by preventing proper setting. There is, however, no general complaint of poor crops through self-sterility. In fact from the behavior of perfectly isolated trees in all parts of the State it would be premised that the cherry is most nearly self-fertile of all tree-fruits.

Yet there may be orchards or seasons in which cross-pollination cuts a figure, for Gardner54, of the Oregon Station, found in experiments carried on by him in various parts of Oregon that many varieties of Sweet Cherries in the Pacific Coast environment are self-sterile. The work seems to have been very carefully done and the conclusions are worth reprinting in full, bearing in mind that they would be much modified under New York conditions. Gardener found:

"1. All the varieties of the Sweet Cherry tested are self-sterile. This self-sterility is in no case due to a lack of germinability of the pollen produced. On the other hand, the pollen of each of the varieties studied is capable of producing a set of fruit on the variety or varieties with which it is inter-fertile. The list includes Bing, Black Republican, Black Tartarian, Coe, Early Purple, Elton, Knight, Lambert, Major Francis, May Duke, Napoleon, Rockport, Waterhouse, Willamette, Windsor, Wood.

"2. Certain of these varieties—Bing, Lambert, and Napoleon are mentioned especially—are inter-sterile. Mixed plantings of these three varieties cannot be expected to set fruit unless the trees are within the range of influence of some other variety or varieties that are inter-fertile with them.

"3. Among those studied, Black Republican, Black Tartarian, and Waterhouse seem to be the most efficient pollenizers for this group of varieties.

"4. Other good pollenizers that may be mentioned are: Elton, Wood, Coe, Major Francis, Early Purple. These, however, proved somewhat variable in their pollenizing abilities.

"5. Some of the seedling trees found in and about cherry orchards are efficient pollenizers for the three varieties—Bing, Lambert, Napoleon. Probably many of these seedling trees are efficient pollenizers, though the value of any particular seedling can be determined only by experiment or very careful observation.

"6. At least some members of the Duke group of cherries are capable of pollinating some of the Bigarreaus.

"7. At least some of the varieties of the Sour Cherry (P. cerasus) are capable of pollinating some of the Bigarreaus.

"8. Inter-sterility of Sweet Cherry varieties is apparently not correlated with their closeness of relationship.

"9. The ability of a variety of cherry to set fruit is not entirely dependent upon the kind of pollen available. Environmental factors are important."

It is doubtful if New York cherry-growers will need to pay much attention to cross-pollination but, in case cherry trees are not setting full crops, and for no other apparent reason, the fertility of the blossoms may well receive attention. Should varieties be found self-sterile, sorts must be chosen which come into blossom at the same time, in which case the preceding table shows the sorts which bloom together or nearly enough so to make cross-pollination possible.

CHERRY ORCHARDS AND THEIR CARE

It is patent to the eye of every passer-by that cherry trees are commonly set too thickly in most of the orchards in New York. While close planting is a universal fault, the amount of room differs greatly in different cherry centers, depending mostly upon the custom in the community, though, as all confess, it should depend upon the variety and the soil. The very erroneous notion seems to have prevailed in setting the plantations now reaching maturity that a large return could be skimmed from a small area by close setting, Sour Cherries often being put only twelve feet apart each way and Sweet Cherries, considering their great size, even closer, at sixteen feet. Experienced growers now put such dwarf kinds as the Morellos at from sixteen to eighteen, the Montmorencies and their kind at eighteen to twenty-two; and the large growing Sweet Cherries at from twenty-four to thirty feet.

Cherries are usually planted two years from the bud. Spring is the season for setting, though the hardy Sour sorts might often be set advantageously in late autumn. The losses at setting time are greater with the cherry than with any other fruit, old hands in fruit-growing losing trees as well as beginners. An experiment at the Station shows that these losses are greatly mitigated by a change in the usual method of transplanting. The custom is to shorten-in all branches of transplanted fruit-trees but this, with the cherry in particular, removes the largest and presumably the best nourished buds—certainly those from which would soonest develop the leaves so necessary to sustain the breath of life in the young plant and to give it a start. In the experiment at this Station it was found that, if the top of the young tree was reduced by thinning the branches instead of cutting all back, a much larger proportion of the trees would strike root and live through our parching summers.

Cherry trees in the past have been headed three or four feet above the ground but in new plantations they are now usually started lower—at half of the above distances. Two forms of top are in vogue, the spire-shape and the vase-shape. Sour Cherries are almost universally grown with closed centers but some growers prefer the form of the vase for Sweet varieties, though the majority hold to trees with central trunks and many subsidiary branches. Little pruning is done in cherry orchards after the first two or three years, by which time the sapling has been shaped. Subsequent pruning consists in removing dead, injured or crowded branches and an occasional superfluous one. Heading-in finds little favor with experienced growers. These few statements indicate that the cherry, as now grown, is pruned but little, and that that little must be done very carefully, the pruning knife in the hands of a careless man being, with this fruit, "a sword in the hands of a child."

The general tuning-up in the cultivation of fruits during the past quarter-century has had its influence on cherry culture. Commercial orchards are no longer kept in sod and the clean, purposeful cultivation that has taken the place of grass has doubled the output of cherries, tree for tree, throughout the State, the difference in yield being especially noticeable in seasons when drought lies heavy on the land. Cultivation, as practiced by the best growers, consists of plowing the land in the spring and then frequently stirring the soil until the first of August, at which time a cover-crop is sown. If the soil is light, and therefore hungry and thirsty, the plowing should be done early and the cultivator kept constantly at work until cherry-picking. Cherry orchards often, without apparent cause, have an indefinable air of malaise—look dingy and unhappy—such require almost week-to-week cultivation to tide them over their period of indisposition.

Grain, as well as grass, is discountenanced in cherry orchards, but cultivated truck and farm crops in young plantations, or, under some conditions, small fruits, are looked upon as permissible and often pay for the keep of the young trees until they come into profitable bearing. Cover-crops are in common vogue in cherry orchards in New York and, since with this fruit they can be sown earlier in the season, are used to better advantage than in other orchards to furnish a full supply of humus and to provide nitrogen. Brown-rot, an annual scourge in most cherry orchards, takes less toll from trees cultivated and cover-cropped, these operations covering the mummied fruits and keeping the spores they carry from coming to light and life.

Cherry growers as a rule are not now using fertilizers for their crops. It would seem that this is not doing duty by the land; but it must be remembered that the cherry grows vigorously and that over-feeding may stimulate the growth too much, laying the orchard open not only to unfruitfulness but to winter injury of bud and tree. Among those who use fertilizers there is little accord as to what fertilizing compounds are best or as to what the results have been. There is common agreement, however, that Sour Cherries respond more generally to fertilizers than the Sweet sorts. Until there are carefully carried out fertilizer experiments with this fruit the vexatious problems of fertilization cannot be solved. Nitrate of soda seems to be a great rejuvenator in orchards laid down to grass. Whatever the cause, when leaves lack color and hang limp, this fertilizer is a sovereign tonic. Heavy dressings of stable manure are much used in grassed-over orchards, as they are, also, in such as have had none or but scant crops.

THE COMMERCIAL STATUS OF CHERRY-GROWING IN NEW YORK

Cherry growing is a specialist's business in which, under the best of conditions, there are more ups and downs than with other fruits. Because of the great profits that have come to a few in the years just past many growers have been drawn into the business in a small way or have planted an acreage beyond their means to manage. The inevitable depression that follows over-planting is, at this writing, at hand and spells ruin to some and disgust and discouragement in the industry to others. Perhaps no fruit can better be left to men of reserve capital than the cherry, and even with men of substance cherry-growing should largely be incidental to the culture of other fruits—an industry to fit in to keep land, labor and machinery employed.

Cherry trees begin to bear in the climate of New York when set from three to five years. The varieties of Prunus cerasus first produce profitable crops but, at from six to eight years from setting, both Sweet and Sour sorts are in full swing as money-making crops. The limits of profitable age are not set by the life of the tree but, rather, by its size. Thus, cherry trees of either of the species commonly cultivated are not infrequently centenarians but the profitable age of an orchard is not often more than from thirty to forty years. After this time the trees become large and the expense of caring for them and of picking the fruit becomes so great as to prevent profits. Moreover, disease, injuries and inevitable accidents will have thinned the ranks of trees until the orchard is below profit-making.

Cherry-picking begins in New York about the first of July, following the rush in harvesting strawberries, and lasts, if the orchard contains both Sweet and Sour varieties, from four to six weeks. Workers may in this way fill in a gap between small-fruits and other tree-fruits and the crop becomes one in which the grower may often take small profits to keep his help employed; though, in the long run, if the more or less frequent depressions can be weathered, the cherry may prove as profitable as other fruits.

The problem of labor is a most vexatious one under present conditions, it being impossible to obtain casual men laborers for cherry-picking and women and children are unsatisfactory, since the fruit must be carefully picked or both cherries and trees suffer. The problem is solved, unsatisfactorily in most cases, in various ways by different growers. Most of the crop is now picked by children in the teens under the eyes of men or women supervisors. In picking for the market the stem is left on and only the stem is touched by the fingers. Cherries for canning factories are less laboriously picked. The picking package is usually an eight-pound basket. The rate paid is one cent per pound. Pickers earn $1.50 to $2.00 per day in good seasons. Close watch is kept on pickers to prevent the breaking off of fruit-spurs, thereby destroying the succeeding year's crop, varieties fruiting in clusters suffering especially from carelessness in this respect. Cherries are picked a few days before full ripeness.

Cherries are sent to canneries in various packages but chiefly in half-bushel baskets or paper-lined bushel crates, the container being often supplied by the cannery. The six- and eight-pound baskets are the favored receptacles for Sour Cherries in city markets but the Sweet sorts are rather oftener sent in four-pound baskets and still more frequently in quart boxes. In the larger packages not much effort is made to make the fruit attractive but in the smaller ones, stemless and bruised cherries are thrown out and the package filled, stem down, with the best fruits. In fancy grades all of the fruit in the box is layered. The demands of the market, of course, determine the package and the manner of packing. Cherries are seldom stored longer than a few days at most in common storage and a week or two weeks in cold storage.

There is a marked difference in the shipping and keeping qualities of varieties of cherries, the sorts that keep longest and ship best, quite at the expense of quality, having the call of the markets. Undoubtedly this must remain so, though it is to be desired that local markets, at least, be supplied with the best, irrespective of handling qualities. A further factor that prevents the placing of choicely good cherries in distant markets at all times is brown-rot, to be discussed later, which more often attacks the juicy and usually the best-flavored varieties, oftentimes ruining the pack on the way to market—one of the most discouraging events incidental to cherry-growing.

Marketing machinery for cherries is at present very costly, inadequate and frequently sadly out of gear. The fruit passes first from the grower to a local buyer who ships to a center of consumption, transportation companies taking heavy toll on the way. Jobbers or commission companies, who in some cases receive the fruit direct from the grower, then distribute the crop to retailers in the consuming centers. Lastly, the retailer parcels out the quantities and the qualities demanded by the housewife. The whole business of selling the crop is speculative and the grower is fortunate to receive half of what the consumer pays and not infrequently has all of his pains for nothing or may even be forced to dip into his pocket for transportation. The perishableness of the product and the present defects of distribution go far to make the crop the hazardous one it is but all look forward to better times coming under an improved system of marketing.

Up to the present, it must be said, but little effort has been made in New York to ship far and to develop a trade in cherries other than at the canneries. The canners have until the last year or two taken the cream of the crop but with recent greatly increased plantings are now over-supplied. The average grower, possessing a mixture of mental inertia and business caution, has not sought other sources for the surplus fruit. Bolder and more energetic spirits are now developing new markets and opening up those to which other tree-fruits more generally go so that the present over-production may prove a blessing in disguise. The greatly increased demand, for Sour Cherries in particular, brought about by the development of markets in 1913-14, are most hopeful signs for the future of the cherry industry.