The Cultivation of The Native Grape, and Manufacture of American Wines Part 3

Our vines being tied, ploughed, and hoed, we come to one of the most important and delicate operations to be performed; one of as great--nay, greater--importance than pruning. I mean summer-pruning, or pinching, _i.e._ thumb or finger pruning. Fall-pruning, or cutting back, is but the beginning of the discipline under which we intend to keep our vines; summer-pruning is the continuation, and one is useless, and cannot be followed systematically without the other.

Let us look at our vine well, before we begin, and commence near the ground. The time to perform the first summer-pruning is when the young shoots are about six to eight inches long, and when you can see plainly all the small bunches or b.u.t.tons--the embryo fruit. We commence on the lower two spurs, having two buds each. From these two shoots have started. One of them we intend for a bearing cane next summer; therefore allow it to grow unchecked for the present, tying it, if long enough, to the lowest wire. The other, which we intend for a spur again next fall, we pinch with thumb and finger to just beyond the last bunch or b.u.t.ton, taking out the leader between the last bunch and the next leaf, as shown in Figure 11, the cross line indicating where the leader is to be pinched off. We now come to the next spur, on the opposite side, where we also leave one cane to grow unchecked, and pinch off the other. We now go over all the shoots coming from the arms or laterals tied to the trellis, and also pinch them beyond the last bunch. Should any of the buds have pushed out two shoots, we rub off the weakest; we also take off all barren or weak shoots. If any of them are not sufficiently developed we pa.s.s them over, and go over the vines again, in a few days after the first pinching.

[Ill.u.s.tration: FIG. 11.]

This early pinching of the shoot has a tendency to throw all the vigor into the development of the young bunch, and the leaves remaining on the shoot, which now grow with astonishing rapidity. It is a gentle checking, and leading the sap into other channels; not the violent process which is often followed long after the bloom, when the wood has become so hardened that it must be cut with a knife, and by which the plant is robbed of a large quant.i.ty of its leaves, to the injury of both fruit and vine. Let any of my readers, who wish to satisfy themselves, summer-prune a vine, according to the method described here, and leave the next vine until after the bloom, and he will plainly perceive the difference. The merit of first having practised this method here, which I consider one of vast importance in grape-culture, belongs to Mr. WILLIAM POESCHEL, of this place, who was led to do so, by observing the rapid development of the young bunches on a shoot which had accidentally been broken beyond the last bunch.

Now, there is hardly an intelligent grape-grower here, who does not follow it; and I think it has added more than one-third to the quant.i.ty and quality of my crop. It also gives a chance to destroy the small, white worm, a species of leaf-folder, which is very troublesome just at this time, eating the young fruit and leaves, and which makes its web among the tender leaves at the end of the shoot.

The bearing branches having all been pinched back, we can leave our vines alone until after the bloom, only tying up the young canes from the spurs, should it become necessary. But do not tie them over the bearing canes, but lead them to the empty s.p.a.ce on both sides of the vine; as our object must be to give the fruit all the air and light we can.

By the time the grapes have bloomed, the laterals will have pushed from the axils of the leaves on the bearing shoots. Now go over these again, and pinch each lateral back to one leaf, as shown in Figure 12. This will make the leaf which remains grow and expand rapidly, serving at the same time as a conductor of sap to the young bunch opposite, and shading it when it becomes fully developed. The canes from the spurs, which we left unchecked, and which we design to bear fruit the next season, may now also be stopped or pinched, when they are about three feet long, to start their laterals into stronger growth. Pinch off all the tendrils; this is a very busy time for the vine-dresser, and upon his close attendance and diligence now, depends, in a great measure, the value of his crop. Besides, "a st.i.tch in time saves nine," and he can save an incredible amount of labor by doing everything at the proper time.

[Ill.u.s.tration: FIG. 12.]

In a short time, the laterals on the fruit-bearing branches which have been pinched will throw out suckers again. These are stopped again, leaving one leaf of the young growth. Leave the laterals on the canes intended for next years' fruiting to grow unchecked, tying them neatly with ba.s.s, or pawpaw bark, or with rye straw.

This is about all that is necessary for this summer, except an occasional tying up of a fruiting branch, should its burden become more than it can bear. But the majority of the branches will be able to sustain their fruit without tying, and the young growth which may yet start from the laterals may be left unchecked, as it will serve to shade the fruit when ripening. Of course, the soil must be kept clean and mellow, as in the former summer. This short pruning is also a partial preventative against mildew and rot, and the last extremely wet season has again shown the importance of letting in light and air to all parts of the vine; as those vineyards, where a strict system of early summer pruning had been followed, did not suffer half as much from rot and mildew as those where the old slovenly method still prevailed.

My readers will perceive, that Fall-pruning, or shortening-in the ripened wood of the vine, and summer-pruning, shortening in and thinning out the young growth, have one and all the same object in view, namely, to keep the vine within proper bounds, and concentrate all its energies for a two-fold object, namely, the production and ripening of the most perfect fruit, and the production of strong, healthy wood for the coming season's crop. Both operations are, in fact, only different parts of one and the same system, of which summer-pruning is the preparatory, and fall pruning the finishing part.

If we think that a vine is setting more fruit than it is able to bear and ripen perfectly, we have it in our power to thin it, by taking away all imperfect bunches, and feeble shoots. We should allow no more wood to grow than we need for next season's bearing; if we allow three canes to grow where only two are needed, we waste the energies of the vine, which should all be concentrated upon ripening its fruit in the most perfect condition, and producing the necessary wood for next season's bearing, and that of the best and most vigorous quality, but no more.

If we prune the vine too long, we over-tax its energies; making it bear more fruit than it can perfect, and the result will be poor, badly-ripened fruit, and small and imperfect wood. If, on the contrary, we prune the vine too short, we will have a rank, excessive growth of wood and leaves, and encourage rot and mildew. Only practice and experience will teach us the exact medium, and the observing vintner will soon find out where he has been wrong, better than he can be taught by a hundred pages of elaborate advice. Different varieties will require different treatment, and it would be foolishness to suppose that two varieties so entirely different, as for instance, the Concord and the Delaware, could be pruned, trained and pinched in the same manner. The first, being a rank and vigorous grower, with long joints, will require much longer pruning than the latter, which is a slow-growing, short-jointed vine. Some varieties, the Taylor for instance, also the Norton, will fruit better if pruned to spurs on old wood, than on the young canes; it will therefore be the best policy for the vintner in pruning these, to retain the old arms or canes, pruning all the healthy, strong shoots they have to two buds, as long as the old arms remain healthy; always, however, growing a young cane to fall back upon, should the old arm become diseased; whereas, the Catawba and Delaware, being only moderate growers, will flourish and bear best when pruned short, and to a cane of last season's growth. The Concord and Herbemont, again, will bear best on the laterals of last season's growth, and should be trained accordingly. Therefore it is, because only a few of the common laborers will take the pains to think and observe closely, that we find among them but few good vine-dressers.

At the end of this season, we find our Concords or Herbemonts, with the old fruit-bearing cane, and a spur on each side, from which have grown two canes; one of which was stopped, like all other fruit-bearing branches, and which we now prune to a spur of two eyes; and another, which was stopped at about three feet, and on which the laterals were allowed to grow unchecked. We therefore have one of these canes, with its laterals, on each side of the vine. These laterals are now pruned precisely as the last season, each being cut back to from four to six eyes, and the old cane, which has borne fruit, is cut away altogether.

With Norton's Virginia, Taylor, and some others, which will bear more readily on spurs from old wood, the old cane is retained, provided the shoots on it are sound and healthy, with well developed buds; the weak ones are cut away altogether, and the others cut back to two eyes each.

One of the canes is pruned, as in the Concord, to be tied to one side of the trellis, the next spring. This closes our summer and fall pruning for the third year. Of the gathering of the fruit, as well for market as for wine, I shall speak in another chapter.

TREATMENT OF THE VINE THE FOURTH SUMMER.

We may now consider the vine as established, able to bear a full crop, and when tied to the trellis in spring, to present the appearance, as shown in Fig. 13. The operations to be performed are precisely the same as in its third year.

[Ill.u.s.tration: FIG. 13.]

In addition, I will here remark, that in wet seasons the soil of the vineyard should be stirred as little as possible, as it will bake and clog, and in dry seasons it should be deeply worked and stirred, as this loose surface-soil will retain moisture much better than a hard surface. Should the vines show a decrease in vigor, they may be manured with ashes or compost, or still better, with surface-soil from the woods. This will serve to replenish the soil which may have been washed off and is much more beneficial than stable manure. When the latter is applied, a small trench should be dug just above the vine, the manure laid in, and covered with soil. But an abundance of fresh soil, drawn up well around the vine, is certainly the best of all manures.

Where a vine has failed to grow the first season, replant with extra strong vines, as they will find it difficult to catch up with the others; or the vacancy can be filled up the next season, by a layer from a neighboring vine, made in the following manner: Dig a trench from the vine to the empty place, about eight to ten inches deep, and bend into it one of the canes of the vine, left to grow unchecked for that purpose, and pruned to the proper length. Let the end of it come out to the surface of the ground with one or two eyes above it, at the place where the vine is to be, and fill up with good, well pulverized earth. It will strike roots at almost every joint, and grow rapidly, but, as it takes a good deal of nourishment from the parent vine, that must be pruned much shorter the first year. When the layer has become well established, it is cut from the parent vine; generally the second season.

Pruning is best done in the fall, but it can be done on mild days all through the winter months, even as late as the middle of March.

Fall-pruning will prevent all flow of sap, and the cuttings are also better if made in the fall, and buried in the ground during winter. All the sound, well-ripened wood of last season's growth may be made into cuttings, which may be either planted, as directed in a former chapter, or sold; and are an accession to the product of the vineyard not to be despised, for they will generally defray all expenses of cultivation.

TRAINING THE VINES ON ARBORS AND WALLS.

This is altogether different from the treatment in vineyards; the first has for its object to grow the most perfect fruit, and to bring the vine, with all its parts, within the easy reach and control of the operator; in the latter, our object is to cover a large s.p.a.ce with foliage, for ornament and shade, fruit being but a secondary consideration. However, if the vine is treated judiciously, it will also produce a large quant.i.ty of fruit, although not of as good quality as in the vineyard.

[Ill.u.s.tration: FIG. 14. FIG. 15.]

Our first object must be to grow very strong plants, to cover a very large s.p.a.ce. Prepare a border by digging a trench two feet deep and four feet wide. Fill with rich soil, decomposed leaves, burnt bones, ashes, etc. Into this plant the strongest plants you have, pruned as for vineyard planting. Leave but one shoot to grow on them during the first summer, which, if properly treated, will get very strong. Cut back to three buds the coming fall. These will each throw out a strong shoot, which should be tied to the arbor they are designed to cover, as shown in Figure 14, and allowed to grow unchecked. In the fall following cut each shoot back to three buds, as our first object must be to get a good basis for our vines. These will give us nine canes the third summer; and as the vine is now thoroughly established and strong, we can begin to work in good earnest. It will be perceived that the vine has three different sections or princ.i.p.al branches, each with three canes. Cut one of these back to two eyes, and the other two to six or eight buds each, according to the strength of the vine, as shown in Figure 15. The next spring tie these neatly to the trellis, and when the young shoots appear thin out the weakest, and leave the others to grow unchecked. The next fall cut back as indicated by the black cross lines, the weakest to be cut back to one or two eyes, and the stronger ones to three or four, the spurs at the bottom to come in as a reserve, should any of the branches become diseased. Figure 16 shows the manner of pruning.

[Ill.u.s.tration: FIG. 16.]

In this manner a vine can be made, in course of time, to cover a large s.p.a.ce, and get very old. The great vine at Windsor Palace was planted more than sixty years ago, and in 1850 it produced two thousand large bunches of magnificent grapes. The s.p.a.ce covered by the branches was one hundred and thirty-eight feet long, and sixteen feet wide, and it had a stem two feet nine inches in circ.u.mference. This is one of the largest vines on record. They should, however, be strongly manured to come to full perfection.

Other authorities prefer the Thomery system of training, but I think it much more complicated and difficult to follow. Those wishing to follow it will find full directions in DR. GRANT'S and FULLER'S books, which are very explicit on this method.

OTHER METHODS OF TRAINING THE VINE.

There are many other systems in vogue among vine-dressers in Germany and France, but as our native grapes are so much stronger in growth, and are in this climate so much more subject to mildew and rot, I think these methods, upon the whole, but poorly adapted to the wants of our native grapes, however judicious they may be there. I will only mention a few of them here; one because it is to a great extent followed in Mexico and California, and seems to suit that dry climate and arid soil very well; and the other, because it will often serve as a pretty border to beds in gardens. The first is the so-called buck or stool method of training. The vine is made to form its head--_i.e._, the part from which the branches start--about a foot above the ground, and all the young shoots are allowed to grow, but summer-pruned or checked just beyond the last bunch of grapes. The next spring all of the young shoots are cut back to two eyes, and this system of "spurring in" is kept up, and the vine will in time present the appearance of a bush or miniature tree, producing all its fruit within a foot from the head, and without further support than its own stem. Very old vines trained in this manner often have twenty to twenty-five spurs, and present, with their fruit all hanging in ma.s.ses around the main trunk, a pleasing but rather odd aspect. This method could not be applied here with any chance of success only to those varieties which are slow growers, and at the same time very hardy. The Delaware would perhaps be the most suitable of all varieties I know for a trial of this method; such strong growers as the Concord and Norton's Virginia could never be kept within the proper bounds, and it would be useless to try it on them. It might be of advantage on poor soil, where there is at the same time a scarcity of timber. Figure 17 shows an old vine pruned after this method.

[Ill.u.s.tration: FIG. 17.]

The other method of dwarfing the grape is practiced to make a pretty border along walks in gardens, and is as follows: Plant your vines about eight feet apart; treat them the first season as in common vineyard planting, but at the end of the first season cut back to two eyes. Now provide posts, three to three and a half feet long; drive them into the ground about eighteen inches to two feet, which can be easily done if they are pointed at one end, and nail a lath on top of them. This is your trellis for the vines, and should be about eighteen inches above the ground when ready. Now allow both shoots which will start from the two buds to grow unchecked; and when they have grown above the trellis, tie one down to the right, the other to the left, allowing them to ramble at will along it. The next fall they are each cut back to the proper length, to meet the next vine, and in spring tied firmly to the lath, as shown in Figure 18. When the young shoots appear, all below the trellis are rubbed off, but all those above the trellis are summer-pruned or pinched immediately beyond the last bunch of grapes, as in vineyard culture, and the trellis, with its garland of fruit, will present a very pretty appearance throughout the summer. In the fall all of these shoots are pruned to one bud, from which will grow the fruit-bearing shoot for the next season, as shown in Figure 19; and the same treatment is repeated during the summer and fall.

[Ill.u.s.tration: FIG. 18. FIG. 19.]

DISEASES OF THE VINE.

I cannot agree with Mr. FULLER that the diseases of the vine are not formidable in this country. They are so formidable that they threaten to destroy some varieties altogether; and the Catawba, once the glory and pride of the Ohio vineyards, has for the last fifteen years suffered so much from them, that many of the grape-growers who are too narrow-minded to try anything else are about giving up grape-growing in despair.

It is very fortunate, therefore, that we have varieties which do not suffer from these diseases, or only in a very slight degree; and my advice to the beginner in grape-culture would be, "not to plant largely of any variety which is subject to disease." Men may talk about sulphuring, and dusting their vines with sulphur through bellows; but I would rather have vines which will bear a good crop without these windy appliances. We can certainly find some varieties for _every_ locality which do not need them, and these we should plant.

The mildew is our most formidable disease, and will very often sweep away two-thirds of a crop of Catawbas in a few days. It generally appears here from the first to the fifteenth of June, after abundant rains, and damp, warm weather. It seems to be a parasitic fungus, and sulphur applied by means of a bellows, or dusted over the fruit and vine is said to be a partial remedy. Close and early summer-pruning will do much to prevent it, throwing, as it does, all the strength of the vine into the young fruit, developing it rapidly, and also allowing free circulation of air. In some varieties--for instance, the Delaware--it will only affect the leaves, causing them to blight and drop off, after which the fruit, although it may attain full size, will not ripen nor become sweet, but wither and drop off prematurely. In seasons when the weather is dry and the air pure, it will not appear.

It is most prevalent in locations which have a tenacious subsoil, and under-draining will very likely prove a partial preventive, as excess of moisture about the roots is no doubt one of its causes.

The gray rot, or so-called grape cholera, generally follows the mildew, and I think that the latter is the princ.i.p.al cause of it, as I have generally found it on berries whose stems have been injured by the mildew. The berry first shows a sort of gray marbling; in a day or two it turns to a grayish-blue color, and finally withers and drops from the bunch. It will continue to affect berries until they begin to color, but only attack a few varieties--the Catawba, To Kalon, Kingsessing, and sometimes the Diana.

The spotted, or brown rot, will also attack many of our varieties; it is very destructive to the Isabella and Catawba, and even the Concord is not quite free from it. But it is, after all, not very destructive, and not half as dangerous as the mildew or gray rot.

Early and close summer-pruning is a partial preventative against all these diseases, as it will hasten the development of the fruit, allow free circulation of air, and the young leaves which appear on the laterals after pinching seem to be better able to withstand the effects of the mildew, often remaining fresh and green, and shading the fruit, when the first growth of leaves have already dropped.

But "an ounce of prevention is better than a pound of cure," and our best preventive is to plant none but healthy varieties. A grape, however good it may be in quality, is not fit for general cultivation if seriously affected with any of these diseases. Nothing can be more discouraging to the grape-grower than to see his vines one day rich in the promise of an abundant crop, and a few days afterwards see two-thirds or three-fourths swept away by disease. It is because I have so often felt this bitter disappointment, that I would warn my readers against planting varieties subject to them. I would save _them_ from the discouragement and bitter losses which I have experienced, when it was out of my power to prevent it. They _can_ prevent it, for the grape-growing of to-day is no longer the same uncertain occupation it was ten years ago. We of to-day have our choice of varieties not subject to disease; let us make it judiciously, and we may be sure of a paying crop every year.

INSECTS INJURIOUS TO THE GRAPE.

The grape has many enemies of this kind, but if they are closely watched from the beginning their ravages are easily kept within proper bounds.

The common gray cut-worm will often eat the young tender shoots of the vine, and draw them into the ground below. Wherever this is perceived the rascal can easily be found by digging for him under some of the loose clods of ground below the vine, and should be destroyed without mercy.

[Ill.u.s.tration: FIG. 20.

DELAWARE.--_Berries 1/2 diameter_.]

Small worms, belonging to the family of leaf-folders, some of them whitish gray, some bluish green, will in spring make their webs among the young, downy leaves at the end of the shoots, eating the young bunches or b.u.t.tons, and the leaves. These can be destroyed when summer pruning for the first time. Look close for them, as they are very small; yet very destructive if let alone.

A small, gray beetle, of about the size and color of a hemp-seed, will often eat a hole into the bud, when it is just swelling, and thus destroy it. He is very shy, and will drop from the vine as soon as you come near him. It is a good plan to spread a newspaper under the vine, and then shake it, when he will drop on the paper and can be caught.