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Are you seeing powdery mildew in your vineyard this season? If so, we would love to sample it, as it could mean that your fungicide program is breaking down due to resistance development in the powdery mildew fungus. One of our graduate students in the University of Georgia Plant Pathology Department, Brooke Warres, is working…
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Hello everyone, I know it is a busy time for you are, so I will make this quick. With grape root borer adult activity coming to a close here in Georgia, I wanted to get your input on this tricky pest. Below is a link to a short questionnaire about grape root borer management. If…
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You may find this YouTube video to be of interest. With the amount of Pierce’s disease (PD) we are observing lately, we need to consider alternatives to Vitis vinifera and susceptible hybrid cultivars, especially at lower elevations and latitudes throughout Georgia. In light of our need for production of quality grapes in the presence of…
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Mark Hoffman (North Carolina State) has developed another webinar that may be of interest to many of you. Please see the link below to find this webinar and related PowerPoints. Enjoy. Link to the webinar: https://grapes.ces.ncsu.edu/grape-diary/webinars-2020/#Harvest
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Mark Hoffman (North Carolina State) conducted a webinar on muscadine disease management yesterday. It included extension personnel and producers. If you are interested in a review of muscadine diseases and their management, please go to the link below. I cover all the major diseases of muscadine in my talk, and there is a helpful question…
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We will soon be observing symptoms of Pierce’s disease in susceptible grape varieties — Vitis vinifera and some hybrids such as Chambourcin. Unfortunately, winter temperatures have now been mild for several years, so we are seeing an uptick in Pierce’s disease at higher and higher elevations in Georgia and throughout the Southeast. Symptoms normally show…
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Disease identification in wine grapes can be confusing, even for the “experts,” so it is good to continually reinforce your knowledge of diseases and their symptoms (spots or discoloration on a leaf for example) and signs (actual pathogen fruiting structures and other tissues you can see with the naked eye or a hand lens) —…
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If you listen to podcasts, you might be interested in listening to the podcast found in the link below. This is from a new University of Arkansas podcast site that is sponsored by the Southern Region Small Fruit Consortium, the same group that funds much of the training of county agents on wine grape production,…
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We are within a few weeks of the anticipated initial emergence of grape root borer (GRB) adults in North Georgia. If you are planning on implementing mating disruption as a management tactic for GRB and you haven’t deployed your pheromone dispensers/ties, now is the time to get those distributed. If you are unfamiliar with grape…
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Today, I observed downy mildew for the first time this year. It was on Lenoir vines in west Georgia, and this indicates that producers should be scouting for it throughout the state. In addition, if you have not already done so, I would consider incorporating highly efficacious materials such as Zampro, Revus, Ridomil Gold MZ…
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