Southwestern Corn Borer Monitoring – Week ending 7/26/2025
By Tyler Towles, Research Entomologist, Don Cook, Entomologist, Whitney Crow, Extension Entomologist and Erick Larson, State Extension Specialist - Grain Crops
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Eighty-three traps across 29 Mississippi counties detected very low southwestern corn borer activity. Only five counties reported the presence of moths, with Leflore reporting the highest count (8 moths in 9 traps). Since most of the state’s corn is approaching harvest, these low numbers suggest moth presence is of little concern at this stage. However, if you have later planted corn, continue to keep SWCB monitoring in mind.
| County | Traps Reporting | Total Reported | Avg/Trap | Maximum/Trap |
|---|---|---|---|---|
| Alcorn | 3 | 0 | 0 | 0 |
| Calhoun | 1 | 0 | 0 | 0 |
| Carroll | 2 | 1 | 0.5 | 1 |
| Chickasaw | 2 | 0 | 0 | 0 |
| Clay | 2 | 0 | 0 | 0 |
| Coahoma | 4 | 1 | 0.25 | 1 | Copiah | 3 | 0 | 0 | 0 |
| Grenada | 4 | 0 | 0 | 0 |
| Hinds | 2 | 0 | 0 | 0 |
| Holmes | 1 | 0 | 0 | 0 |
| Issaquena | 2 | 0 | 0 | 0 |
| Lafayette | 2 | 0 | 0 | 0 |
| Leflore | 9 | 8 | 0.88 | 5 |
| Lowndes | 4 | 0 | 0 | 0 |
| Marshall | 2 | 0 | 0 | 0 |
| Noxubee | 4 | 0 | 0 | 0 |
| Oktibbeha | 2 | 0 | 0 | 0 |
| Panola | 2 | 2 | 1 | 2 |
| Pontotoc | 4 | 0 | 0 | 0 |
| Prentiss | 1 | 0 | 0 | 0 |
| Quitman | 4 | 0 | 0 | 0 |
| Rankin | 3 | 0 | 0 | 0 |
| Scott | 3 | 0 | 0 | 0 |
| Sharkey | 1 | 0 | 0 | 0 |
| Sunflower | 4 | 0 | 0 | 0 |
| Tallahatchie | 2 | 0 | 0 | 0 |
| Tate | 2 | 0 | 0 | 0 |
| Yalobusha | 3 | 0 | 0 | 0 |
| Yazoo | 5 | 1 | 0.2 | 1 |
By Tyler Towles, Research Entomologist, Don Cook, Entomologist, Whitney Crow, Extension Entomologist and Erick Larson, State Extension Specialist - Grain Crops
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