Integrated Crop Management News
 

Document Type

Article

Publication Date

7-10-2013

Abstract

Western bean cutworm (WBC) is a corn pest that has expanded its range across Iowa and toward East Coast states. Before corn tassels, newly emerged WBC larvae move to the whorl and feed on the flag leaf. Once tasseling begins, they move to the green silks. Older larvae feed primarily on the ear tip, but some move outside the ear, chew through the husk and feed on kernels on the side or shank of the ear. Unlike corn earworm, multiple WBC larvae may be found in the same ear. Consuming the developing kernels can cause yield losses. In addition, the damage caused by feeding can allow pathogens to enter the ear and reduce grain quality.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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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 Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user.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/.