UGA Extension Viticulture Blog

West Georgia Grape Harvest Complete

UPDATE: Just before Hurricane Irma hit our state, the winegrape growers in the West Georgia area had thankfully already completed their harvest.  Vineyards in the Carroll and Haralson County areas are growing PD-tolerant hybrid winegrapes Norton, Blanc Du Bois, Villard Blanc, and Lenoir.  Blanc Du Bois was harvested back in…
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Pierce’s Disease Action Items

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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A reflection on Norton winemaking

Dear all: I wanted to share a well-written note regarding Norton winemaking. a note on Norton astringency An industry member wrote it up, and I take absolutely zero credit for it. Thanks to this member for their kindness in sharing their thoughts with the true aim of helping out all…
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Mechanical leaf removal considerations for vineyards

The following was written by John Scaduto, Rabun County Extension Coordinator, ANR Agent, and UGA Viticulture Extension Team member.  Thank you for the insight, John.   Research and experience has necessitated several manual labor tasks being performed in wine grape vineyards before the fruit ever reaches the winery. Of the…
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Monitoring maturity / deciding when to pick.

MONITORING MATURITY: Monitoring grape maturity is important in order to determine when to pick. I am not going to go into the rather subjective details of what defines maturity for making quality wine. Most industry practitioners use a combination of chemical and sensory evaluations to determine when to pick (……
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Reflections on Resistance

Pierce’s Disease (PD) is an ever present threat in the minds of many grape-growers.  This disease, caused by the bacterium Xylella fastidiosa, is spread by many vectors, but most notably, the glassy winged sharpshooter (GWSS).  Though PD was first discovered in Anaheim, California and was spread by the blue-green sharpshooter,…
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