Grape Disease Risk: 7/8-7/15/2026

Vine status If anything, this year has been a Phomopsis year! These spots on the leaf in the picture are Phomopsis lesions. You do not need to manage this disease… Read more

Grape Disease Risks: 7/2-7/8/2026 and Downy Mildew Forecast

Vine status Still behind on canopy management, and vines are filling the canopy with many laterals. Some of the Chardonnay clusters on primary shoots are at bunch closure, and others… Read more

Grape Disease Risks: 6/24-7/1/2026, Downy Mildew Forecast, and EPA Public Comment

Vine status Still behind on canopy management, and vines are filling the canopy with many laterals. Hybrids and table grapes are a bit more consistent with fruits. Vidal is pea-sized;… Read more

Grape Disease Risks: 6/17-24/2026, and Downy Mildew Forecast

Vine status We hedged our Chardonnay vines this week. Still behind on canopy management, as you can see in the picture above. Hybrids and table grapes are a bit more… Read more

Grape Disease Risks 5/27-6/3/2026 and downy mildew forecast

Vine status The effect of rain finally kicked in. Chardonnay vines grew considerably over the last week. I started canopy management this morning. My goal is to keep a bit… Read more

Disease risks 5/21-5/27 and downy mildew forecast

Vine status Probably because of the cooler temperature, the vines did not move as much as I hoped. As with last week, many Chardonnay shoots do not bear flower clusters,… Read more

Disease risks from 5/13 – 5/20 and downy mildew forecast

Vine status Things are finally moving. I saw quite a few shots from the secondary (or tertiary) buds coming up strongly, especially from the central part of the canopy (i.e.,… Read more

Grape Disease Risks from Last Week, and downy mildew forecast

Vine status It has not changed much from last week. Temperatures have been relatively low, and the shoot growth rate remains slow. However, I observed some improvements (e.g., growth from… Read more

Grape Disease Risks from the last week, Mancozeb and Isomate Z Updates.

Vine status I was hoping to see some progress by now, but since the temperature has been relatively low (or maybe normal for this time of the year), vines have… Read more

Frost, disease risks, and a downy forecast

Vine status Unfortunately, many of our vines were affected by the frost event yesterday. I have heard from Northern VA, the Shenandoah Valley, and Central VA, with varying degrees of… Read more
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