This is the first report of the 2018 season. Thirteen of 37 sites reported this week. European corn borer (ECB)-E was caught at two of the reporting sites. The first spring flight of ECB-E moths is expected when accumulated growing degree days reach 374 (modified base 50). We are within the range for ECB flight and egg laying to have started at most of the 37 sites (see degree day accumulation in table below). If you have corn in or approaching the tassel emergence stage during the first generation flight click the “Managing ECB in plastic, row cover, or transplanted sweet corn” link to the right under “Pages” for management information.
J.W. Apple, Department of Entomology, University of Wisconsin-Madison
Three sites reported a single corn earworm (CEW): Geneva, Avon and Seneca Castle. This is low enough to not require a spray. Fall armyworm (FAW) was caught at two sites this week.
| Location | ECB-E | ECB-Z | CEW | FAW | WBC | DD to Date |
|
| Accord (Ulster Co.) | NA | NA | NA | NA | NA | 503.7 | |
| Amsterdam (Fulton Co.) | NA | NA | NA | NA | NA | 417.1 | |
| Athens (Greene Co.) | 0 | 0 | NA | NA | NA | 508.8 | |
| Avon (Livingston Co.) | 0 | 0 | 1 | 0 | NA | 471.9 | |
| Baldwinsville (Onondaga Co.) | NA | NA | NA | NA | NA | 494.5 | |
| Batavia (Genesee Co.) | NA | NA | NA | NA | NA | 481.2 | |
| Bellona (Yates Co.) | NA | NA | NA | NA | NA | 497.5 | |
| Canton (St. Lawrence Co.) | NA | NA | NA | NA | NA | 384.5 | |
| Eagle Bridge (Washington Co.) | 0 | 0 | NA | 1 | 0 | 396.0 | |
| Eden (Erie Co.) | 0 | 0 | 0 | 0 | NA | 494.8 | |
| Farmington (Ontario Co.) | 0 | 0 | 0 | 0 | NA | 484.3 | |
| Feura Bush (Albany Co.) | 0 | 0 | NA | NA | NA | 417.4 | |
| Florida (Orange Co.) | NA | NA | NA | NA | NA | 531.5 | |
| Geneva (Ontario Co.) | 1 | 0 | 1 | 0 | NA | 481.9 | |
| Greenwich (Washington Co.) | 0 | 0 | NA | 3 | 3 | 396.0 | |
| Hamlin (Monroe Co.) | NA | NA | NA | NA | NA | 421.1 | |
| Hurley (Ulster Co.) | 1 | 0 | 0 | 0 | NA | 504.8 | |
| Kennedy (Chautauqua Co.) | NA | NA | NA | NA | NA | 450.0 | |
| Kinderhook (Columbia Co.) | 0 | 0 | NA | NA | NA | 474.6 | |
| King Ferry (Cayuga Co.) | NA | NA | NA | NA | NA | 484.6 | |
| Kirkville (Madison Co.) | NA | NA | NA | NA | NA | 467.5 | |
| Oswego (Oswego Co.) | NA | NA | NA | NA | NA | 455.4 | |
| Owego (Tioga Co.) | NA | NA | NA | NA | NA | 406.0 | |
| Pavilion (Genesee Co.) | NA | NA | NA | NA | NA | 399.9 | |
| Penn Yan (Yates Co.) | NA | NA | NA | NA | NA | 503.0 | |
| Peru (Clinton Co.) | NA | NA | NA | NA | NA | 392.6 | |
| Plattsburgh (Clinton Co.) | NA | NA | NA | NA | NA | 356.4 | |
| Plessis (Jefferson Co.) | NA | NA | NA | NA | NA | 400.0 | |
| Preble (Cortland Co.) | NA | NA | NA | NA | NA | 486.8 | |
| Ransomville (Niagara Co.) | 0 | 0 | 0 | 0 | NA | 465.8 | |
| Schaghticoke (Rensselear Co.) | 0 | 0 | NA | NA | NA | NA | |
| Schoharie (Schoharie Co.) | NA | NA | NA | NA | NA | 417.1 | |
| Seneca Castle (Ontario Co.) | 0 | 0 | 1 | 0 | NA | 470.0 | |
| Sherwood (Cayuga Co.) | NA | NA | NA | NA | NA | 484.6 | |
| Stone Ridge (Ulster Co.) | NA | NA | NA | NA | NA | 504.8 | |
| Tivoli (Dutchess Co.) | NA | NA | NA | NA | NA | 528.2 | |
| Williamson (Wayne Co.) | NA | NA | NA | NA | NA | 432.4 | |
| ECB – European Corn Borer CEW – Corn Earworm FAW – Fall Armyworm WBC – Western Bean Cutworm NA – not available DD – Degree Day (modified base 50F) accumulation |
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| trap catches for the week of 5.22.18 – 5.29.18 |
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