Les Lewis and Bob Gunnarson of the USDA Corn Insects Research Laboratory in Ames conducted a survey of the European com borer population in central Iowa and found that the population has suffered high mortality. The percent mortality from four central Iowa counties was 51 percent (Franklin County), 37 percent (Hardin County), 40 percent (Marshall County), and 50 percent (Story County). These larvae died from the fungus, Beauveria bassiana.
Iowa State University
Rice, Marlin E., "Winter mortality in European corn borers" (2002). Integrated Crop Management News. 1741.
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 Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user.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 https://crops.extension.iastate.edu/.