There is such a thing as summer pruning of vines. If this is a new vine and the arms or trunk have grown to the point that you want simply remove the growing tip at the end and it will stop growing at that particular point. The growth of canes in this growing season can be pruned as a summer pruning but it is recommended that you leave at least 15 full size leaves behind on each cane for each cluster of grapes growing so that they can ripen the grapes.
Hello,
There is such a thing as summer pruning of vines. If this is a new vine and the arms or trunk have grown to the point that you want simply remove the growing tip at the end and it will stop growing at that particular point. The growth of canes in this growing season can be pruned as a summer pruning but it is recommended that you leave at least 15 full size leaves behind on each cane for each cluster of grapes growing so that they can ripen the grapes.