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Black Rot Issues

We have been receiving multiple grape samples with black rot in our diagnostic clinic.  Only one or two infected grapes can provide a vast number of spores for secondary infections of clusters going forward.  Prevalent rainfall has made control difficult. The disease cycle will slow as grapes mature, but fruit…
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Time to Pull out the Big Guns

I think most producers are fully aware that recent rainfall events will increase disease levels in wine grapes.  I am particularly concerned about fruit rots and downy mildew.  In particular, more active materials for downy mildew are needed at this time.  Though the contact materials such as Captan and Mancozeb…
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