Grape Disease Risks: 6/11-18/2025, 8-day downy mildew forecast, and Yellow Tulip Popular Weevil

Grape disease risks from the NEWA Here are snapshots from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery… Read more

Grape Disease Risks: 6/4-6/11/2025, 8-day downy mildew risk forecast, slides from today’s meeting, and Isomate GBR Z

Grape disease risks from the NEWA Here are snapshots from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery… Read more

Grape Disease Risks: 5/29 – 6/4/2025 (+ downy mildew risk for the next 8 days)

Sorry for the delay. I was away due to an extension event. Here are snapshots from the last week, showing the number of days with the risk of each disease:… Read more

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… Read more

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… Read more

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… Read more

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… Read more

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… Read more

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… Read more

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… Read more
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