How to scout for common stalk borer

June 18, 2019 11:35 AM
Blog Post

This year I’ve had a few people ask for tips on scouting for common stalk borer. The larvae are moving from brome to corn throughout Iowa and it is a good time to scout for timely management. Thanks to the help of Warren Pierson, coordinator of the FEEL, I have some photos to share.

Common stalk borer.
Look for “dead heads” in brome along field margins.

Common stalk borer.
Infested (left) brome compared to a healthy stem.


Common stalk borer.
Splitting open an infested stem reveals common stalk borer. 

Hope this helps with your scouting efforts this season!



Erin Hodgson Professor

Dr. Erin Hodgson started working in the Department of Entomology, now the Department of Plant Pathology, Entomology, and Microbiology, at Iowa State University in 2009. She is a professor with extension and research responsibilities in corn and soybeans. She has a general background in integrated...