Cooperative
Extension
Service


University of Illinois
at
Urbana-Champaign


No. 1/March 21, 1997

Bt-corn and European corn borers

Burning Issue

Bt-corn and European corn borers. Bt-corn hybrids are available from several seed companies, and the interest in planting these hybrids for corn borer management is high. Although the effectiveness of Bt-corn has been demonstrated, issues related to economics and resistance management also are important. Will corn borers be problematic in 1997? Many may be infected with Nosema pyrausta. Will corn borers become resistant to Bt? Resistance management strategies are discussed.