If you read the bean leaf beetle prediction in the May 1 ICM newsletter, you'll know that winter mortality of this soybean pest is expected to be at a 12-year low. The result will be that we should have more bean leaf beetles this spring than during an average year. In fact, our predictions, based on summer population increases during the last several years coupled with the mild winter, are for the populations to be very large. Sweep samples taken from alfalfa fields in Ames on May 2 indicate that the beetles are extremely abundant; they should move to soybeans as soon as the plants germinate.
Iowa State University
Rice, Marlin E. and Pedigo, Larry P., "Expect lots of bean leaf beetles in 2000" (2000). Integrated Crop Management News. 2026.
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 Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user.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/.