Grape Pathology at Virginia Tech

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Grape Pathology at Virginia Tech Dr. Mizuho Nita and his team conduct grape disease management research at Virginia Tech’s AHS AREC Smith, Jr. AREC - www.arec.vaes.vt.edu/alson-h-smith

From our website:

"Research at the center includes plant disease epidemiology and using various epidemiological tools to come up with efficient plant disease management practices that achieve maximum disease management with low chemical input. Researchers have been developing empirical and mechanistic models that describe relationships between a plant disease and environmental conditions. These models can be used to help growers make decisions on fungicide application. Plans are to develop an online, map-based grape disease risk assessment system for Virginia w**e grape growers. Grape Extension pathology activities include exploration of cultural and chemical means of disease management, fungicide and fungicide-alternative testing, variety susceptibility evaluation, and development of novel diagnostic tools. Extension programs also target growers as well as Cooperative Extension agents with training in disease identification and management, using electronic and printed resources, such as disease fact sheets." Other useful links:
Dr. Nita's blog - www.grapepathology.blogspot.com
Virginia Cooperative Extension - www.ext.vt.edu
Alson H.

Last Week's Virginia Grape Disease Risks and Downy Mildew Forecast: Last Weekly Update for the 2026 Season.
09/30/2026

Last Week's Virginia Grape Disease Risks and Downy Mildew Forecast: Last Weekly Update for the 2026 Season.

Virginia Grape Disease Risk and Downy Mildew Forecast
09/23/2026

Virginia Grape Disease Risk and Downy Mildew Forecast

Grape Disease Risks: 9/16-9/23/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week show

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast.It looks like rain is coming next week!
09/16/2026

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast.

It looks like rain is coming next week!

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast
09/09/2026

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast

Vine Status We had table grape harvest today. Some table grapes, e.g., Mars, Faith, Everlest, and Joy, had OK harvest despite the frost damages. Grape D

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast.
09/02/2026

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast.

Somehow the link did not work, so, here comes the weekly Virginia Grape Disease Risks and Downy Mildew Forecast.
08/26/2026

Somehow the link did not work, so, here comes the weekly Virginia Grape Disease Risks and Downy Mildew Forecast.

Vine Status Our Chardonnay vines are nearing harvest. The only issue is that we only have a few clusters... Grape Disease Risks: 8/19-8/26/2026 NEWA

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast
08/26/2026

Virginia Grape Disease Risks from Last Week and Downy Mildew Forecast

Virginia Weekly Grape Disease Risks and Downy Mildew Forecast.- Several regions experienced high downy mildew risks for ...
08/20/2026

Virginia Weekly Grape Disease Risks and Downy Mildew Forecast.

- Several regions experienced high downy mildew risks for two weeks in a row, and we are looking at more rain.

Grape Disease Risks: 8/12-8/19/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week showing

Virginia Grape Disease Risks from Last Week, and Downy Mildew Forecast
08/12/2026

Virginia Grape Disease Risks from Last Week, and Downy Mildew Forecast

Vine Status The majority of Chardonnay clusters are in the middle of veraison. For some reason, our Merlot dodged the frost, and its clusters started to acc

VA Grape Disease Risks and Downy Mildew Forecast- Downy mildew risk forecast indicates high risk in Central VA
08/05/2026

VA Grape Disease Risks and Downy Mildew Forecast

- Downy mildew risk forecast indicates high risk in Central VA

Grape Disease Risks: 7/29 - 8/5/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week sho

Address

595 Laurel Grove Rd
Wi******er, VA
22602

Opening Hours

Monday 7:30pm - 4pm
Tuesday 7:30pm - 4pm
Wednesday 7:30pm - 4pm
Thursday 7:30pm - 4pm
Friday 7:30pm - 4pm

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(540) 869-2560 Ext 33

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