Grape Disease risks 4/5-/9/2025 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

Early Season Grape Disease Management Reminders

Phomopsis cane and leaf spot One of the diseases you need to consider soon after bud break is Phomopsis cane and leaf spot. It causes minor leaf spots, which are… Read more

Reminders for early-season grape disease management

Phomopsis cane and leaf spot One of the diseases you need to consider soon after bud break is Phomopsis cane and leaf spot. It causes minor leaf spots, which are… Read more

Early Season Grape Disease Management Reminders

Phomopsis cane and leaf spot One of the diseases you need to consider soon after bud break is Phomopsis cane and leaf spot. It causes minor leaf spots, which are… Read more

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. Read more

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… Read more

Reminder for Phomopsis management

It looks like our Chardonnay buds are swelling, which probably means that growers in the south and central Virginia either start to see bud break. Then the forecast is calling… Read more

Bud break and Phomopsis

Our Chardonnay is about to break buds. It is about 2 weeks ahead of “normal” year, whatever it means at this point… One of the diseases you need to consider… Read more

Phomopsis disease management reminder

(Phomopsis leaf spot (plus a lesion of black rot), please note the shoot behind the leaf is showing some necrotic lesions which are also caused by the same pathogen) One… Read more

Dormant application of fungicide(s)

At this time of the season, I am often asked about an application of fungicide(s) to dormant vines. I totally understand that you want to do something before things get… Read more
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