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
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
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
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
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
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
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
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 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
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