Integrated Crop Management News

Document Type


Publication Date



The western bean cutworm is a mid-season pest of field corn that was rarely seen in Iowa before 2000. But during the past two summers injury has become more obvious and widespread. Most of the historical infestations have occurred in northwestern Iowa. In 2001, the injury was more widespread, occurring not only throughout the northwestern counties but also in the southwestern counties (Harrison, Pottawattamie, and Mills) and northeastern counties (Bremer and Butler). Some fields had approximately 95 percent of the ears heavily damaged from the larvae.

Copyright Owner

Iowa State University



File Format





The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit