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Phil Brannen

About Phil Brannen

Phil Brannen is a Professor in the Plant Pathology Department at the University of Georgia. He attended the University of Georgia for his undergraduate degree in Plant Protection and Pest Management, where he also received an M.S. in Plant Pathology, followed by a Ph.D. in Plant Pathology from Auburn University. He has extensive experience with disease management programs in numerous cropping systems. He serves as the extension fruit pathologist for Georgia – conducting research and technology transfer for multiple fruit commodities. His efforts are directed towards developing IPM practices to solve disease issues and technology transfer of disease-management methods to commercial fruit producers. He also teaches the graduate level Field Pathology Course, the History of Plant Diseases and their Impact on Human Societies Course, team-teaches the IPM Course, coordinates the Viticulture and Enology in the Mediterranean Region Course (Cortona, Italy), and guest lectures in numerous other courses throughout the year.

Pierce’s Disease Training

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…
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Downy Mildew Leaf Symptoms and Signs

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…
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Wine Grape Pathology Podcast Episode

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…
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Downy Mildew Alert

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…
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Powdery Mildew Alert

Powdery mildew is just starting to show up on untreated plants in the research vineyard at Blairsville, GA. The photograph below was taken today, but infections likely started occurring some time ago. I hope you will not see it yet in well managed vineyards, but recent rains and other difficulties…
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Fungal Resistance Management Videos

Much of the wine grape pathology research we have conducted in Georgia over the last 2-3 years has been associated with resistance management of fungal pathogens such as downy mildew, powdery mildew, Botrytis and others. Alternation or tank-mixing of different fungicide classes is critical for prevention of resistance development. Under…
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Response to Cold-damaged Vines

Vineyards in many of the northern counties of Georgia have received cold damage on multiple occasions this year.  The most recent damage occurred 10 May, which means that grapes were phenologically more advanced that one would have observed with past frost/freeze events.  In fact, this is the latest event of…
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COVID 19 Assistance for Farmers

See below for a message from our Associate Dean relative new funds that are available for helping farmers. I am not sure whether wine grape producers could benefit from these funds or not, but I am sure that muscadine producers for fresh market consumption could benefit. At a minimum, I…
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