UGA Extension Viticulture Blog

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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Where to get forecasts for frost

In a blog post earlier this week I provided some links to sources of information on historical frost dates across the country. Today I want to provide you with some links to help you find current forecasts for frost.  It looks like to me that we are likely to see…
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Wine and weather in the news

For those of you who follow national and international trends in wine grapes and wine production, you may be interested in some recent articles I have seen on the impacts of weather on wine production both here in the US and abroad. One of the biggest stories, of course, has…
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Another warm and dry winter may be in the offing

The latest outlook for winter is now available from NOAA’s Climate Prediction Center. Short answer: warmer and drier than usual conditions are more likely than usual due to the impending La Niña. I break it down in my blog post at http://blog.extension.uga.edu/climate/2017/10/latest-climate-outlook-shows-impact-from-la-nina/.  
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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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Fall freeze climatologies

Looking for average first frost dates for fall?  I have just posted a list of several sources that can help you identify the average first fall frost date for your area on my blog at http://blog.extension.uga.edu/climate/2017/10/fall-freeze-climatologies/. Later this week I will discuss some places you can go to see current frost…
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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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