Corn rootworms (CRW) are a key insect pest and a potential economic risk to corn production in Wisconsin. Detection of field-evolved resistance of the western corn rootworm to certain plant incorporated Bt proteins (GMO hybrids) has recently focused attention on using an Integrated Pest Management (IPM) approach to reduce the potential for resistance and unexpected damage. Managing this risk will require use of field data (beetle scouting and root evaluations) so that a prescriptive management plans can be developed that reduces the reliance on a single management tactic.
Soil Science Extension
University of Wisconsin Madison