Conduct pruning in very late winter or early spring just before the leaf buds swell and break.
Remove small, weak side stems from the main vining branches by snipping them with the pruners 1/4 inch above their attachment to the main branches.
Keep larger, stronger side stems at a spacing of 6 to 12 inches on the main vining branches. These stronger, retained side stems are called the "spurs".
Trim back each spur so only two buds remain. Make the pruning cut 1/3 to 1/4 inch above the second bud.
Spray the pruner's blade with the 10% alcohol solution before pruning another grape vine plant. This kills any diseases, preventing unknowingly spreading pathogens between plants during the annual pruning maintenance.
Conduct pruning in very late winter or early spring just before the leaf buds swell and break.
Select two to four robust, healthy-looking canes on the grape vine plant. Remove all other canes with a pruning cut at the base of the plant.
Cut two remaining canes so that each has 12 to 15 buds, making the cut 1/3 inch above the uppermost bud.
Reduce the remaining one or two canes so that each has two buds, making the cut 1/3 inch above the bud. These canes are the spur canes that grow this year and becomes next winter's pruning canes.
Tie the two 12 to 15 bud canes to the support trellis in a horizontal position. The tie knot should be snug but not tightly restrictive upon the cane's bark.
Spray the pruner's blade with the 10% alcohol solution before pruning another grape vine plant. This kills any diseases, preventing unknowingly spreading pathogens between plants during the annual pruning maintenance.