Corn Belt: Rootworm Populations on the Rise with Heavy Bt Resistance – DTN Oct 15, 2020

🕔Oct 15, 2020
After several years of low corn rootworm populations, the “billion-dollar bug” is catching eyes again in the Corn Belt. Populations of both western and northern corn rootworm are rebounding after […]

Iowa Corn, Soybeans: Scouting for Spider Mites Jul 20, 2020

🕔Jul 20, 2020
As parts of Iowa enter severe drought on July 14, I encourage you to scout for twospotted spider mites in crops. Twospotted spider mites can increase whenever temperatures are greater […]

Minnesota Corn: European Corn Borer – Implications of Reducing Bt Acres Nov 26, 2019

🕔Nov 26, 2019
The economics of 2019-2020 corn production has challenged many farmers to minimize production costs. Hybrid selection is one way to reduce costs. Planting corn hybrids without Bacillus thuringiensis (Bt) proteins […]

Minnesota Corn: Reducing Bt Trait Acres in 2019? Implications for European Corn Borer Dec 18, 2018

🕔Dec 18, 2018
Editor’s Note: For accompanying charts and figures see original article at the Source URL below. The economics of 2018 corn production challenged many farmers to minimize losses per acre. One […]

Minnesota: Corn Rootworm Emergence About to Rocket Jul 2, 2018

🕔Jul 2, 2018
Corn rootworm emergence typically begins in the days following July 4th. Based on predictive degree-day models and confirmed with flotation of rootworms from dug plants, 2018 will follow this pattern […]

Minnesota Corn: Rootworms – Activity, Bt Resistance – Podcast Jun 8, 2018

🕔Jun 8, 2018
Our guest this week is Dr. Ken Ostlie, University of Minnesota Extension Entomologist, and Professor in the Dept. of Entomology, UMN. Ken’s primary research and extension responsibilities include corn insect […]

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