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Agronomic Crops Network

Ohio State University Extension


Lep Monitoring Update: FAW Trapping Continues to Increase

Fall Armyworm:  Fall armyworm (FAW) trapping expands with 5 more counties setting traps and more expected as Western Bean Cutworm (WBC) traps are taken down. The number of FAW captures has increased over the past week with a statewide average of 4.6. All current reporting counties captured moths besides Madison County (Figure 1).

Fall Armyworm Moth Map
August 8-14, 2022

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Western Bean Cutworm:  Western bean cutworm (WBC) numbers continue to decrease over the past week, with a total average of only 0.2 moths across the state. Of the reporting counties, only 6 are still reporting moth captures including Clark, Geauga, Hardin, Huron, Tuscarawas, and Wayne (Figure 2). All of the counties reporting moths are less than the egg mass scouting threshold. With the end of the WBC season, counties will continue to change out WBC traps with FAW.

Western Bean Cutworm Map
August 8-14, 2022

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Corn Earworm:  The number of Corn Earworm (CEW) has continued to increase over the past week going from a statewide average of 2.8 to 3.6. Of the reporting counties, 6 are still reporting captures including Clark, Fulton, Muskingum, Putnam, Wood, and Van Wert (Figure 3). Clark county reported the highest moth count with an average of 13 moths over the past week.

Corn Earworm Moth Map
August 8-14, 2022

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European Corn Borer:  This week’s numbers for European Corn Borer (ECB) have slightly increased from last week but only two reporting counties continue to report moths (Figure 4). The two counties that found ECB over the last week were Fulton and Muskingum counties. Although the average has risen, the numbers are still very low statewide with 0.7 for EBC-IA and 0.3 ECB-NY.

European Corn Borer Moth Map
August 8-14, 2022

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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.