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Don't Forget to Scout for Stalk Borers

June 1, 2001
In the May 18, 2001, Bulletin (issue no. 8), we reported heat-unit accumulations that indicated stalk borers were on the move in southern Illinois. With all the attention directed at armyworms during the past 10 days, don't forget about the other lepidopteran pests, including stalk borer. Scouting is recommended when accumulated heat units are between 1,300 and 1,400, and 50% movement occurs between 1,400 to 1,700 accumulated heat units. An updated heat-accumulation map will be included in next week's Bulletin. For more information on the stalk borer, visit our IPM website and view the online fact sheet (http://www.ipm.uiuc.edu/
publications/infosheets/stalkborer21/stalkborer.htm
).--Sue Ratcliffe

Author: Susan Ratcliffe


The Pest Management and Crop Development Bulletin
Executive Editor: Kevin Steffey, Extension Entomologist

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