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: Wine Grapes
What’s Up? Tender Fruit and Grape Update June 11, 2026
By Kathryn Carter, Fruit Specialist (Tender fruit and Grape), OMAFA Weather Warm temperatures continue to advance crop development. Despite theContinue Reading
Importance of continuing research on the promising Canadian grape rootstocks
Dr. Alireza Rahemi (Morehead State University, Kentucky) The Ontario wine industry contributes approximately $5.5 billion annually to Ontario’s economy. However,Continue Reading
Sowing the Seeds of Soil Health in Vineyards: Cover Crops for Vineyard Floor Management
By Kathryn Carter, and Stephanie Vickers, OMAFA A cover crop is any plant that is intentionally grown in vineyard middles-Continue Reading
Copper 53 W label updated for use on vinifera grapes
Until recently, the Copper 53 W label indicated a warning “Do not use on vinifera varieties.” This caused some consternationContinue Reading
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
What’s up? Tender fruit and grape update June 4, 2026
By Kathryn Carter, Fruit Specialist (Tender fruit and Grape) Weather This week there have been several days of warm, dryContinue 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
Tender fruit and grape update
Kathryn Carter, Fruit Specialist (Tender Fruit and Grape), OMAFA Weather This spring has been a roller coaster of temperatures. BasedContinue Reading