Grape Disease Risks 5/17 – 5/24/2023

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 Risks 5/10 – 5/17/2023

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 Risks 4/27 – 5/3/2023

I hope your vines did not suffer from recent frost events. Based on what I heard from growers, some growers in the Shenandoah Valley suffered minor damage on specific cultivars,… Read more

Grape disease risk events: 4/21/2023 – 4/27/2023

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 events: 4/12/2023 – 4/20/2023

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 events: 4/4/2023 – 4/11/2023

It looks like pretty much all of us are experiencing a bud burst 2-3 weeks ahead of a typical year (which seems to happen rather rarely nowadays). Based on the… Read more

Grape Disease Risk Summary 9/28 – 10/5/2022

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

Grape Disease Risk Summary 9/22 – 9/28/2022

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

Grape Disease Risk Summary 9/14 – 9/22/2022

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

Grape Disease Risk Summary 9/7 – 9/14/2022

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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