Lep Monitoring Update: FAW Trapping Continues other Monitoring will Stop

Western Bean Cutworm

Fall Armyworm

As more counties set up Fall armyworm (FAW) traps this week, overall averages have slightly declined from 4.2 to 3.1. Of all the reporting counties, Lucas County saw the highest number of captures with 32 moths (Figure 1). Beginning next week, trapping for Western Bean Cutworm (WBC), Corn Earworm (CEW), and European Corn Borer (ECB) will be stopped, and counties will focus on FAW.

Fall Armyworm Moth Map

August 15-21, 2022

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Figure 1. Average fall armyworm (FAW) moths captured from August 15th through August 21st. The large number indicates the average moth count for the week and the small number in parentheses is the total traps set up in the county.

 

Western Bean Cutworm

WBC numbers remain very low over the past week, with a total average of only 0.2 moths across the state. Of the reporting counties, only 2 are still reporting moth captures including Geauga and Sandusky (Figure 2). This will be our last week reporting WBC captures as counties will switch over to FAW.

 

Western Bean Cutworm Map

August 15-21, 2022

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Figure 2. Average western bean cutworm (WBC) moths captured from August 15th through August 21st. The large number indicates the average moth count for the week and the small number in parentheses is the total traps set up in the county.

 

Corn Earworm

The number of CEW has remained consistent over the past week with an average of 2.6 moths. Of the reporting counties, 5 are still reporting captures including Clark, Muskingum, Putnam, Wayne, and Van Wert (Figure 3). Clark county reported the highest moth count with an average of 12 moths over the past week. We will no longer be reporting on CEW captures after this week.

 

Corn Earworm Moth Map

August 15-21, 2022

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Figure 3. Average corn earworm (CEW) moths captured from August 15th through August 21st. The large number indicates the average moth count for the week and the small number in parentheses is the total traps set up in the county.

 

European Corn Borer

This week’s numbers for ECB have declined from last week to an average of 0 moths as no reporting counties reported moth captures (Figure 4). We are past peak flight for ECB and plan to remove any remaining traps this week.

European Corn Borer Moth Map

August 15-21, 2022

 

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Figure 4. Average European corn borer (ECB) moths captured from August 15th to August 21st. The first number indicates the average ECB-IA followed by a comma and then the average ECB-NY moth count for the week. The small number in parentheses is the total traps for each species set in each county.

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.