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Pest management Guidelines posts

Late winter pruning, frost protection, and timely disease and weed management

Feb 25, 2018 | Written by

I have received calls/concerns about adjusting pruning practice based on the warm weather patterns we are currently experiencing. The questions really being asked are “when should I final prune?” and “should I delay prune?” given the high potential for yet another relatively early bud break this year. –When to make…
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Small Fruits Newsletter – grape chores

Feb 3, 2018 | Written by

Please see this PDF for a list of timely “grape chores” that are published quarterly in the Small Fruits Newsletter from the Southern Region Small Fruits Consortium (www.smallfruits.org). UGA Extension Viticulture Team members Dr. Phil Brannen and Mr. Wayne Mitchem have both contributed to this edition’s grape chores.  We thank…
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Grapevine Trunk Diseases Review

Dec 21, 2017 | Written by

If you are really interested in learning about grapevine trunk diseases, this new journal article is for you (see link).  It is a highly scientific article which covers the state of the art relative this topic.  We mainly have issues with Botryosphaeria-type diseases, and I include Phomopsis in this category…
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Crown Gall Symptoms

Oct 23, 2017 | Written by

Crown gall can sometimes be confused with either leaf roll virus or Pierce’s disease. In general, if a plant is a completely brilliant red, this is likely caused by crown gall or some trunk injury.  Pierce’s disease and leaf roll viruses can also have reddened leaves or leaf margins, so…
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Pierce’s Disease Action Items

Sep 14, 2017 | Written by

Pierce’s disease (PD) is showing up in numerous vineyards on quite a few grape varieties — V. vinifera and hybrids. Vines should be scouted in each vineyard for the three characteristic symptoms of PD: leaf scorch showing marginal chlorosis and necrosis, leafless petioles “match-sticks”, and “green islands” on the canes….
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Sour Rot Reported — Management Plan

Aug 7, 2017 | Written by

Sour rot is showing up in some Georgia vineyards (see photo below), and this is really no surprise with our environment.  The classic vinegar smell in the vineyard helps to identify sour rot, as other rots are somewhat similar as they initially develop. We have issues with this disease complex…
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