Blogs
Discipline: Grape pathology
Investigator: Mizuho Nita
Title: Virginia Grape Disease Updates
Description: Seasonal updates on wine grape disease management, extension meeting announcements, and other related topics from a grape pathology lab at AHS AREC.
Virginia Grape Disease Updates
- Grape Disease Risks: 5/21-28/2025 + DM forcast Here are snapshots 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. N/A means there is no data...
- Grape Disease Risks: 5/14 – 5/21/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease Risk Events: 5/7 – 5/15/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease Risk Events: 4/30-5/7/2025 and slides from today’s meeting Here are snapshots 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. N/A means there is no data...
- At bloom grape disease management reminders I hope you are enjoying the much-needed rains in your area. It seems a bit early to talk about bloom, but vines are moving much quicker than I anticipated, probably due to the warm April. Bloom begins a critical period...
- Pest Management Guides, 2025 I am sorry, I totally forgot to update the links! For Commercial Grapes, Please Click Here (will open a PDF file) For Home Garden, Please Click Here (will open a PDF file) For other “Grapes and Wines” resources from the...
- Grape Disease Risks: 4/23-4/30/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/16-4/23/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/10-4/16/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/5-/9/2025 and Slides from today’s meeting Here are snapshots 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. N/A means there is no data...
Discipline: Grape pathology
Investigator: Mizuho Nita
Title: Virginia Grape Disease Updates
Description: Seasonal updates on wine grape disease management, extension meeting announcements, and other related topics from a grape pathology lab at AHS AREC.
Virginia Grape Disease Updates
- Grape Disease Risks: 5/21-28/2025 + DM forcast Here are snapshots 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. N/A means there is no data...
- Grape Disease Risks: 5/14 – 5/21/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease Risk Events: 5/7 – 5/15/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease Risk Events: 4/30-5/7/2025 and slides from today’s meeting Here are snapshots 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. N/A means there is no data...
- At bloom grape disease management reminders I hope you are enjoying the much-needed rains in your area. It seems a bit early to talk about bloom, but vines are moving much quicker than I anticipated, probably due to the warm April. Bloom begins a critical period...
- Pest Management Guides, 2025 I am sorry, I totally forgot to update the links! For Commercial Grapes, Please Click Here (will open a PDF file) For Home Garden, Please Click Here (will open a PDF file) For other “Grapes and Wines” resources from the...
- Grape Disease Risks: 4/23-4/30/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/16-4/23/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/10-4/16/2025 Here are snapshots 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. N/A means there is no data...
- Grape Disease risks 4/5-/9/2025 and Slides from today’s meeting Here are snapshots 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. N/A means there is no data...
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