NEWS
Rootworm Realities
Emily Unglesbee DTN Staff Reporter
Fri Apr 11, 2014 04:10 PM CDT

LAWRENCE, Kan. (DTN) -- Along with the flowers, budding trees and April showers, spring brings a less welcome development for Corn Belt farmers: Continued spread of Bt-resistant western corn rootworm.

Three more Illinois counties --- Sangamon, Mercer and McDonough -- have confirmed western corn rootworm populations resistant to Bt-hybrids that express the Cry3Bb1 protein. University of Illinois entomologist Michael Gray announced the latest confirmations in a university pest bulletin on April 3. Since the first documented case of Bt-resistant rootworm in 2009 in Iowa, confirmed and suspected cases of it have surfaced throughout the Corn Belt.

In his announcement, Gray ...

Quick View
Related News Stories
Dr. Dan Talks Agronomy
Trait Territory Defined
Weeds to Watch - 14
Weeds to Watch - 8
Rootworm Strategy
Rootworm Review
A Maize Mutant
Rootworm Reunion
Production Blog
Rotation Resistant Rootworm