2022 Ontario Corn Rootworm Trap Network Results

Results from the 2022 Ontario trap sites participating in the Adult Corn Rootworm (CRW) Trap Monitoring Network have been summarized in the infographic below. A more detailed report for all trap sites across North America was prepared by Ashley Dean and Erin Hodgson at Iowa State University and myself at: 2022 Regional Corn Rootworm Monitoring Network Summary. Thank you to Dan Bihari, Senior GIS Specialist, OMAFRA for developing and maintaining the trap network site.

Trap supplies will be made available again for free for the 2023 season thanks to the Grain Farmers of Ontario (GFO) and the Agricultural Biotechnology Stewardship Technical Committee (ABSTC). Contact Tracey Baute (tracey.baute@ontario.ca) if you are interested in participating. Growers and crop advisors are strongly encouraged to participate, if they have fields with a history of repeated Bt-RW hybrid use and are within or adjacent to fields and counties of concern shown in the report below. Monitoring traps in these fields enables you to visually see what adult populations are like each week and year, compare them to other fields, as well as enable you to spot any unexpected injury early to report to the seed provider and Tracey so that collections can be made and tested for resistance.