UGA Extension Viticulture Blog

Small Fruits News, Vol. 19, No. 1 available now

Please see the following link to view the newest installment of Small Fruits News (Vol. 19, No. 1), a quarterly publication from the Southern Region Small Fruits Consortium. Small Fruits News is made possible through the collaborative efforts of specialists from southeastern US land grant universities. Vol19-Issue1   Of note…
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Viticulture Management Poster – available at a conference or workshop near you

Several specialists from southeastern US universities (University of Georgia, North Carolina State, Virginia Tech) collaborated to make a handy, picture- and information-intensive, visually-appealing (thanks to Megan McCoy in the UGA CAES Office of Communications and Creative Services) winegrape vineyard management poster.  The poster is printed on high-quality, waterproof stock, and…
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PLEASE take this powdery mildew resistance survey.

Dear bunch winegrape and muscadine growers: You may recall a recent blog post by our resident grape disease specialist, Dr. Phil Brannen, about powdery mildew resistance to QoI fungicides in Georgia … If not, here it is: https://site.extension.uga.edu/viticulture/2018/12/widespread-powdery-mildew-resistance-to-qoi-fungicides-in-georgia-vinifera-grapes/   Dr. Brannen is part of a multi-state team of specialists working…
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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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