UGA Extension Viticulture Blog

Bird & Mammal Prevention/Deterrence

Please let me introduce myself.  My name is Mike Mengak and I am a Professor & Wildlife Outreach Specialist in the Warnell School of Forestry & Natural Resources at the University of Georgia.  Our Viticulture Extension Specialist – Dr. Cain Hickey – has invited me to join the “Viticulture Team”. …
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Powdery Mildew Management Questions — Answers from an International Workshop on Powdery Mildew

I recently had questions at a grower meeting about several aspects of powdery mildew management.  I am currently attending an international meeting on powdery mildew, so it is very helpful to have my opinions supported by true experts in the field of powdery mildew management.  Relative powdery mildew, the following…
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Japanese beetle management reminder

With veraison upon us, I just wanted to remind everyone about the continued threat from Japanese beetles. The adult beetles feed on the soft leaf tissue between veins, which often results in a skeletonized appearance. Below are images from Petit Verdot that Cain observed recently in Virginia that have been…
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Grape root borer detection

We collected our first grape root borer adult in one of our pheromone traps in North Georgia. This means that the adults are beginning to emerge from the soil out of their pupal stage. For the next few weeks the adults will emerge, mate, and the females will lay their…
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Soil and Plant Tissue Sampling in Vineyards

Like most perennial plants, the nutritional requirements of grapevines are best evaluated through a combination of soil testing, tissue analysis, observations, and past experience. Soil tests can give growers information about soil pH and basic nutrient levels in the vineyard. To ensure that your grapevines are taking up sufficient nutrients,…
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Considerations for crop thinning

We talked about crop load management at the recent mid-season vineyard workshop at Wolf Mountain Vineyards and Winery.  Whether you were there or not, I hope this will serve as good food for thought if you are considering crop thinning. Depending on variety, site, and local weather patterns, some will be starting veraison…
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