The lowdown on downy mildew this summer, 2026
The rainy, cloudy weather we’ve been having is ideal for downy mildew infection. We’ve found sporulating lesions on leaves andContinue Reading
Category: Diseases
Clearing the Cobwebs: Copper Use for Grape and Stone Fruit Diseases
Katie Goldenhar, OMAFRA Plant Pathologist – Horticulture & Wendy McFadden-Smith, Tender Fruit and Grape IPM Specialist Do you really knowContinue Reading
We want your grape downy mildew!
For the 2026 growing season, OMAFA has funding to screen Ontario grape downy mildew for sensitivity to phosphorous acid. ContactContinue Reading
