UGA Extension Viticulture Blog

Reminder – grower roundtable meeting on November 1st (NEXT Wednesday)

We have had only a handful of registrants for the grower roundtable meeting scheduled for next Wednesday, November 1 at Kaya Vineyard and Winery.  This meeting will start at 10 AM. Details can be found in a previous post: http://blog.extension.uga.edu/viticulture/2017/10/post-harvest-roundtable-meeting-scheduled-for-november-1-2017/ Maybe only a handful of people are interested in attending…
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Crown Gall Symptoms

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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Vineyard “chores” list from Southern Region Small Fruits Consortium Newsletter

I write a column in the Southern Region Small Fruit Consortium’s quarterly newsletter entitled “Small Fruit News”. The column is a “grape chores list” to complement the caneberry and strawberry chores lists contained in the newsletter. This chores list may contain some information that is valuable to blog readers, so…
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2017 North Georgia Wine Grape Season Wrap Up

It has been a successful first research season in the vineyards of North Georgia. The UGA Extension Viticulture Team finished harvesting their last research plots of the season two weeks ago.  As we reflect on this past season, we can now see that it was a race from the start. …
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A note about post-harvest fertilization

I have been asked about the need to apply fertilizer after harvest. Studies have shown that root mass increases considerably after harvest, and continues on this trend for about five to six weeks before levelling off at leaf fall.  During the post-harvest / pre-leaf drop period, roots can take up…
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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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