Sometimes a plant is especially vigorous and has one cane that will reach the lower wire or beyond. In this case, the cane may be cut at the height of the lower wire and tied tautly to it. When new shoots are about 1 inch long, remove them except for the upper two or three near the wire. De-shooting is illustrated in Figure 4. From among the shoots allowed to develop, one will be selected to complete the trunk.
Second year Select the most vigorous cane and remove all others.
Plants look like this after pruning in second season. Early in the second growing season, some cane selection for the next year may be possible on the larger, more vigorous plants. When new shoots are 1 to 3 inches long, remove all but three or four arising from near each wire. Flower or fruit clusters are best removed as noticed. Plants bearing no fruit make stronger vine growth.