Nita lab

Grape Pathology lab at Virginia Tech

Research
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日本語

Research
Extension
Resources
日本語

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Virginia Grape Disease Updates

Grape Disease Risks 5/31 – 6/7/2023 and Slides from today’s meeting June 8, 2023
Grape disease risks Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was...
Grape Disease Risks 5/24 – 5/31/2023 May 31, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape Disease Risks 5/17 – 5/24/2023 May 24, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape Disease Risks 5/10 – 5/17/2023 May 17, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape Disease Risks 5/3 – 5/10/2023 (and tomorrow’s virtual meeting) May 10, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape Disease Risks 4/27 – 5/3/2023 May 4, 2023
I hope your vines did not suffer from recent frost events. Based on what I heard from growers, some growers in the Shenandoah Valley suffered minor damage on specific cultivars, and a few suffered severe damage. Here’s a snapshot from...
Pest Management Guides 2023 May 1, 2023
Dear all, Here are links to the new Pest Management Guides. It should open a pdf file. If the link becomes inaccessible in the future (it happened last year), please send me an email so that I can fix it....
Grape disease risk events: 4/21/2023 – 4/27/2023 April 27, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape disease risk events: 4/12/2023 – 4/20/2023 April 20, 2023
Here’s a snapshot from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. This information was made available through...
Grape disease risk events: 4/4/2023 – 4/11/2023 April 11, 2023
It looks like pretty much all of us are experiencing a bud burst 2-3 weeks ahead of a typical year (which seems to happen rather rarely nowadays). Based on the Sentinel Vineyard Core Group, Chardonnay vines are EL stage 7-9...

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