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Lep Monitoring Network – Corn Earworm and Western Bean Cutworm # 10

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Home // C.O.R.N. Newsletter // 2025-20 // Lep Monitoring Network – Corn Earworm and Western Bean Cutworm # 10

This is our 10^th week of monitoring moth pests in Ohio, and we are in our fourth week of monitoring Corn Earworm (CEW) and Western Bean Cutworm (WBC). Monitoring is reported for June 23 through 29, and during this time, we had a heat wave in most of Ohio. Despite the break in rain and increased temperatures, low moth numbers for CEW and WBC were reported. Please read below for more details.

Corn Earworm

Corn earworm moth photo credit: Curtis Young

Similar to last week, there were low numbers of CEWs in the majority of reporting counties. Morgan and Van Wert were the only counties to collect moths. Morgan County collected the most moths on average (6.7 moths). Overall, the statewide averages of CEW have remained low since the beginning of June.

More information on CEW can be found here:

https://agcrops.osu.edu/newsletter/corn-newsletter/2019-27/corn-earworm-field-corn-watch-molds

Corn Earworm Moth Map

Week #4

June 23^rd to June 29^th, 2025

Figure 1. Average corn earworm (CEW) moths captured from June 23rd to June 29th. The bold number indicates the average moth count for the week. The standard number indicates the total number of traps in that county.

Western Bean Cutworm

We are still in the early stages of monitoring for WBC, and we do not expect a peak until early to mid-July. This week 10 counties monitored WBC, and the majority of counties reported 0 moths. Three counties trapped WBC (Van Wert, Morgan, and Wayne.) The numbers decreased from last week, but the number of moths should increase by mid-July.

For more information on how to scout WBC please visit: Western Bean Cutworm | Ohioline

Western Bean Cutworm Moth Map

Week #4

June 23^rdto June 29^th, 2025

Figure 2. Average Western Bean Cutworm (WBC) moths captured from June 23rd to June 29th. The bold number indicates the average moth count for the week. The standard number indicates the total number of traps in that 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.

Author(s):

Evan Hodkinson, Trevor Mullen, Rosalind Holt-Frank, Amy Raudenbush, Nic Baumer, Mary Jo Hassen, Seth Kannberg, Jordan Penrose, Beth Scheckelhoff, Kyle Verhoff, Jacob Winters, Curtis Young, CCA, Kelley Tilmon

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