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Agronomic Crops Network

Ohio State University Extension


Western Bean Cutworm Count Rising and Eggs Hatching

We have seen a large increase in Western Bean Cutworm catches (see figure), which is typical for this time of year. Given the heat in the forecast later this week, it might be safe to say that we are into peak flight.  We have also heard of eggs hatching—as more adults emerge, more eggs will be laid. Now is the time to scout your corn for egg masses, especially if they have not tasseled yet. Economic threshold is more than 5-8% of corn (10 plants in 10 locations) with egg masses.

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.