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Grape Vineyard

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From: Jeffrey Kirby
New Holland, IL
I have a small vineyard of Concord and Niagara grapes that were subject to what I think is 2,4-D damage . It was in the process of setting fruit when it was subject to two days of 60 mile an hour winds so I am not sure where the drift came from. There are a lot of elongated clusters that are aborting and curled upward leaves. They are now setting on new growth that have clusters on them and they look healthy. My question is should I prune off the damaged vines or leave them alone and just let them grow? Thanks Jeff

Extension Message
From: Richard Hentschel
Extension Educator, Horticulture
DuPage/Kane/Kendall Unit
Any kind of new growth will be normal. If the leaves were sufficiently damaged they will fall off on their own or at least hang there completely browned. grapes are very sensitive and drift can come from as far as 5 miles away. Prune as you need to in your normal pruning efforts both damaged and non damaged canes.

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