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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: 6/27 – 7/4/2024 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:6/20 – 6/26/2024, PHI, and Zirum 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 – 19 June 2024 and Slides from the VVA Summer Meeting Here are snapshots from the last two weeks (sorry for missing last week. I was busy with the VVA meeting.), showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR =...
  • Post-bloom disease management slides Thanks for joining our meeting today. Please find a copy of my slides from today, which include this week’s grape disease risks.
  • Grape Disease Risks: 5/22 – 5/29/2024 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. N/A means there is no data...
  • Grape Disease Risks: 5/15 – 5/22/2024 At Winchester, our Chardonnay vines are in the trace bloom stage. This is the earliest bloom since I joined VT in 2009. Here’s a snapshot from the last week, showing the number of days with the risk of each disease:...
  • Grape Disease Risks: 5/8 – 5/15/2024 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. N/A means there is no data...
  • Grape Disease Risks: 5/1 – 5/8/2024 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. N/A means there is no data...
  • Slides from today (including disease risks from the past four weeks) Thank you again for joining the session earlier today. Please see my slides below. We also discussed the requirement to check the limited area for restricted pesticides. Please visit this site, enter your location, and print out the screen for...
  • Grape Disease Risks 4/12 – 17/2024 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. N/A means there is no data...