Tag Archives: resistance

Managing Basil Downy Mildew with Resistant Cultivars

Posted on April 28, 2026 by Sean Westerveld

Basil downy mildew was first identified in Ontario in 2010 and caused devastating losses in the first few years after its introduction (Figure 1). The disease often shows up in Ontario in late July or early August, and once in … Continue reading →

Posted in Culinary, Herbs | Tagged , , , , | Leave a comment

Resistant Weed Testing is Available for the 2023 Field Season

Posted on April 27, 2023 by Sean Westerveld

By: Kristen Obeid, OMAFRA Weed Management Specialist Resistant weeds are becoming the new norm in weed management for many Ontario farmers.  This is a reminder that genomic resistant weed testing will be available again at no cost to the grower … Continue reading →

Posted in All Specialty Crops, Culinary, Ginseng, Ginseng Pest Management, Herbs, Hops, Hops Pest Management, Industrial and Misc. Crops, Industrial Hemp, Specialty Fruit and Nuts, Specialty Grains, Specialty Vegetable Pest Management, Specialty Vegetables, Sweet Potato, Sweet Potato Pest Management | Tagged , , , , | Leave a comment

Pesticide Resistance Management – Lunch and Learn Series

Posted on December 17, 2020 by Sean Westerveld

Lunch and Learn Series for fruit, vegetable and specialty crops Presented by OMAFRA horticulture specialists: Hannah Fraser – Entomologist, Katie Goldenhar – Pathologist, Kristen Obeid – Weed Management This series on pesticide resistance management is to give field growers with … Continue reading →

Posted in All Specialty Crops, Ginseng, Ginseng Pest Management, Hops, Hops Pest Management, Industrial and Misc. Crops, Specialty Fruit and Nuts, Specialty Grains, Specialty Vegetables, Sweet Potato, Sweet Potato Pest Management | Tagged , , , , , , | Leave a comment