Protecting Your Feed Supply from Bt-resistant Corn Rootworm

Corn rootworm is a serious pest of continuous corn. For 16 years, producers growing corn-on-corn have relied on hybrids with rootworm Bt traits (Bt-RW), sometimes called “below-ground protection”, to minimize crop damage. Since 2019, populations of corn rootworm with resistance to Bt-RW were identified in Ontario. Dairy farmers need to be proactive about how they grow corn going forward to protect their feed supply and mitigate rootworm resistance. Christine will discuss agronomy strategies to keep corn in the ration.

Christine O’Reilly is the Forage and Grazing Specialist with the Ontario Ministry of Agriculture, Food, and Rural Affairs. Her areas of focus include the benefits of forages and grazing within cropping systems, forage production and grazing systems for northern Ontario, and improving the productivity and profitability of forages. Christine joined the ministry in 2017 and is based out of the Lindsay office.

January 5, 2023, 8:45:00 p.m.

CEU Credits Available:

CEU Credits will be confirmed closer to the time of the event.