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Agronomic Crops Network

Ohio State University Extension


Western Bean Cutworm Numbers Remain Low Across Ohio

We are in week two of The Ohio State University Western bean cutworm (WBC) monitoring network. Last week’s trap count included WBC adults captured from July 1 – July 6. Overall, 22 counties monitored 64 traps across Ohio. Trap counts increased slightly, resulting in a total of 18 WBC adults (0.3 average moths per trap) (Figure 1). None of the counties reported capturing more than 1 moth / day over the 7 day monitoring period; therefore, all counties currently remain below the recommended levels that indicate scouting for egg masses should begin. 

WBC Trap Counts Week 7-8-19

More information on our trapping summary for the 2018 field season can be found here:

Further information on WBC can be found in our fact sheet: and a free article in the Journal of Integrated Pest Management:

Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.