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

by George Husmann

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 buttons—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 button, 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 pass them over, and go over the vines again, in a few days after the first pinching.

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 quantity 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 quantity 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 space 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 stitch in time saves nine," and he can save an incredible amount of labor by doing everything at the proper time.

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 bass, 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.