European corn borer wreaked havoc for decades in cornfields across North America before the adoption of transgenic traits (Bt) in the late 1990s effectively punched out the pest. Earlier this year at Southwest Crop Diagnostic Days at the University of Guelph’s Ridgetown campus, Ontario ministry of agriculture entomologist Tracey Baute noted that the yield-robbing insect… Read More

Corn rootworm resistance to Bt proteins and hybrids is a growing concern for Ontario corn producers. In this video report from Ontario Diagnostic Days 2021, University of Guelph research scientist Jocelyn Smith helps growers understand corn rootworm’s life cycle and how to rate corn roots for rootworm injury. She also discusses how growers can work with researchers to… Read More