Twenty-five sites reporting this week. European corn borer (ECB)-E was trapped at seven sites and ECB-Z was trapped at six sites. Corn earworm (CEW) was trapped at 22 sites, with 18 sites high enough to be on a 3, 4, 5 or 6 day spray schedule (see chart below). Fall armyworm (FAW) was caught at seven sites and Western bean cutworm (WBC) was caught at 6 of the reporting sites.
Average sweet corn trap catches from 5.28.24– 8.27.24.
It is important to correctly identify the larval pests in your corn so that management practices can be altered when needed. Below are images of the four larval pests that the SCPTN monitors (ECB-E and Z look identical). To help with identification please also see the Sweet Corn Larval Pest Identification fact sheet (https://ecommons.cornell.edu/handle/1813/57328).
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- WBC larva in corn
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- CEW larva in corn
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- ECB larva in corn
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- Fall armyworm larva, note the inverted ‘Y’ om head capsule.
Table showing trap catch for 8.20.24 – 8.27.24.
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