2006 rootworm monitoring sites in Iowa

2006 rootworm monitoring sites in Iowa
Field locations: brown circle indicates fields where both a corn and soybean field were monitored for rotation-resistant western corn rootworms and extended-diapause northern corn rootworms; black square indicates fields where northern corn rootworm activity in soybeans following prolonged rotations away from corn were monitored.
Updated 02/13/2007 - 1:25pm