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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

  • Slides from the 2022 VVA summer meeting It was very nice to see you at the VVA. Here are my slides from yesterday. As I mentioned yesterday, I am conducting a survey to seek your feedback and input on my extension activities. Also, the second half is...
  • Grape Disease Risk Summary 5/4-5/11/2022 and at bloom grape disease management considerations Risk summary As a part of a Wine Board-funded the Sentinel Vineyard project, we received NEWA weather stations that have been installed throughout the state. Here’s a snapshot from the last week, showing the number of days with the risk...
  • Grape Disease Risk Summary 4/27-5/5/2022 As a part of a Wine Board-funded the Sentinel Vineyard project, we received NEWA weather stations that have been installed throughout the state. Here’s a snapshot from the last week, showing the number of days with the risk of each...
  • Grape disease risks 4/20-4/27/2022 It looks like this morning did not get too cold for grapes. A quick look at the low temperature showed that some parts of northern and northcentral VA saw 33F or so, but the rest of the state was in...
  • Fungicide spray guide for non-bearing grapes I posted it last year, but it looks like the links are a bit messed up, so, here you go. You can download the fungicide spray guide for non-bearing grapes (i.e., young vines, first and second year). Or from here...
  • Slides from today’s meeting Thank you for attending our monthly viticulture meeting! We will host a series of meeting every third Thursday from 1 PM. I will be a quick recap of the season and seasonal reminders. We are happy to hear from you...
  • Friendly reminder on Phomopsis management Our chardonnay is about 30-40% bud break as of yesterday. Just a friendly reminder that the protection against Phomopsis is better applied about 1- to 3-inch shoot length.
  • Early season (Phomopsis and anthracnose) reminder It may be a bit too late for some (sorry!), but here’s a reminder for early season grape disease management. Phomopsis symptoms One of the diseases you need to consider soon after bud break is Phomopsis cane and leaf spot....
  • Slides from Grape Disease Management Workshops 2022 Thanks for attending our grape disease management workshops. I am posting my presentations. The first one was used in the English version which we covered details of disease management, and the second one is used in the Spanish version where...
  • Upcoming grape disease management meetings Hi all, please sign up using the link below if you are interested in any of our grape disease management meetings that will take place in the next several weeks. We need your email address to send you a link...