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Spraying after harvest

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richinsd

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Aug 23, 2020
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Hi All,

Short time member and 1st time poster.

I wanted to get some feedback on whether anyone actually continues spraying for PM or DM (or any other organism) after harvest? We harvested just after Labor Day, but I was just walking thru the vineyard today and there are some spots that look a little rough. We tend to have fine mildew weather all the way past Thanksgiving (usually about the time leaf drop starts). Does anyone do this....or do you just quit after harvest and start back up again after pruning/dormant spray?

Richard
 

VinesnBines

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Feb 5, 2020
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The Virginia Tech Research Team says to keep spraying because PM and DM can still attack and weaken the vines.
 

Neb Farmer

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I continue to spray sulphur after harvest, definitely. The idea is to prevent powdery mildew by staying ahead of it, so yes...continue the spray. Powdery mildew can and will find a home in the bark of the vine, so it is best to stay ahead of it if you can. The nice part about spraying after harvest is the canopy and leaves are soon gone and the spraying of the vines themselves is pretty easy.
 
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