Grape Disease Risks: 9/17-9/25/2025, and an 8-day downy mildew forecast

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

Grape disease risks 9/10-17, and ~8-day downy mildew forecast

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

Grape disease risks: 9/4 – 9/10/2025 and 8-day downy mildew forecast

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

Grape Disease Risks 8/13-8/20/2025, and an 8-day downy mildew forecast

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

Grape Disease Risks: 7/2-7/9/2025, downy mildew 8-day forecast, and comments on fungicide resistance

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: 8/7-8/14/2024, Slides from last week, and a List of short PHI fungicides.

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 5/3 – 5/10/2023 (and tomorrow’s virtual meeting)

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… Read more

Grape Disease Risk Summary 8/17-8/24/2022

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… Read more
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