An updated map of the current sites can be viewed at the About page of this blog. I have also divided the table below into Western and Eastern NY to reflect the map on the About page.
Thirteen sites reported this week with European corn borer (ECB)-E caught at 3 of the sites and ECB-Z caught at 2 sites. Two sites reported corn earworm (CEW) and both caught 2 CEW each, which puts those sites on a 6 day spray interval (see table at bottom of post). No fall armyworm (FAW) were caught at any of the reporting sites. Traps for western bean cutworm (WBC) went out this week, so the first reports will begin next week.
Next to 6 sites there is an asterisk. These sites have, in addition to the 5 regular traps, a new trap for the hybrid ECB. This moth is known to be present in North America and was caught at several sites in Canada last year. We have added the trap to these sites to see if the hybrid is present in NY. Over the last year I have received several reports of damage in the field but without significant trap catch. The ECB hybrid responds to a different pheromone lure and if present would not be attracted to either the ECB-E or ECB-Z lure. If any hyrbid ECB moths are caught I will post those numbers here as well.
Next to each site I have also included the accumulated degree days (base 86/50). Most sites are in the first spring moth or early egg laying stage for ECB (see table below).
ECB in early sweet corn, which was started under row cover, plastic or transplanted, does not feed in the whorl and emerge in the tassel as they do in bare ground corn and therefore the usual scouting and threshold recommendations do not apply. Target newly hatching larvae using the moth trap catches or scout for egg masses to determine when sprays are needed. Growers have had good results when pheromone trap catches were used to time sprays for the first generation ECB in row cover or plastic corn. Growers waited until there was a significant increase in the ECB trap catches in their area and then timed sprays to coincide with egg hatch. ECB eggs require 100 degree days (base 50) from oviposition to hatch. Two to three applications bracketing the peak moth flight are generally effective.
| Location | ECB-E | ECB-Z | CEW | FAW | WBC | DD | ||
| Western NY trap Catch |
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| Attica (Wyoming Co.) | NA | NA | NA | NA | NA | 402 | ||
| Baldwinsville (Onondaga Co.) | NA | NA | NA | NA | NA | 448 | ||
| Batavia (Genesee Co.) | NA | NA | NA | NA | NA | 412 | ||
| Bellona (Yates Co.)* | NA | NA | NA | NA | NA | 417 | ||
| Brockport (Monroe Co.) | 0 | 0 | 0 | 0 | NA | 439 | ||
| Eden (Erie Co.) | 0 | 0 | 2 | 0 | NA | 450 | ||
| Farmington (Ontario Co)* | 0 | 0 | 0 | 0 | NA | 434 | ||
| Geneva (Ontario Co.)* | NA | NA | NA | NA | NA | 417 | ||
| Hamlin (Orleans Co.) | NA | NA | NA | NA | NA | 408 | ||
| Kennedy (Chautauqua Co.) | NA | NA | NA | NA | NA | 422 | ||
| King Ferry (Cayuga Co.) | NA | NA | NA | NA | NA | 390 | ||
| Kirkville (Madison Co.) | NA | NA | NA | NA | NA | 444 | ||
| LeRoy (Genesee Co.) | NA | NA | NA | NA | NA | 404 | ||
| Lyndonville (Orleans Co.) | 0 | 0 | 2 | 0 | NA | 386 | ||
| Oswego (Oswego Co.) | 0 | 0 | 0 | 0 | NA | 347 | ||
| Panama (Chautauqua Co.) | NA | NA | NA | NA | NA | 372 | ||
| Penn Yan (Yates Co.)* | 0 | 1 | 0 | 0 | NA | 400 | ||
| Portville (Cattaraugus Co.) | NA | NA | NA | NA | NA | 395 | ||
| Preble (Cortland Co.) | NA | NA | NA | NA | NA | 294 | ||
| Ransomville (Niagara Co.) | 0 | 0 | 0 | 0 | NA | 418 | ||
| Seneca Castle (Ontario Co.)* | 6 | 0 | 0 | 0 | NA | 391 | ||
| Sherwood (Cayuga Co.) | NA | NA | NA | NA | NA | 386 | ||
| Williamson (Wayne Co.) | NA | NA | NA | NA | NA | 386 | ||
| Eastern NY trap Catch |
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| Accord (Ulster Co.) | NA | NA | NA | NA | NA | 543 | ||
| Amsterdam (Fulton Co.) | NA | NA | NA | NA | NA | 414 | ||
| Feura Bush (Albany Co.) | NA | NA | NA | NA | NA | 506 | ||
| Florida (Orange Co.) | NA | NA | NA | NA | NA | 548 | ||
| Greenwich (Washington Co.) | NA | NA | NA | NA | NA | 459 | ||
| Hurley (Ulster Co.)* | 21 | 4 | 0 | 0 | NA | 499 | ||
| Kinderhook (Columbia Co.) | NA | NA | NA | NA | NA | 511 | ||
| Melrose (Rensselear Co.) | NA | NA | NA | NA | NA | 507 | ||
| Middleburgh (Schoharie Co.) | NA | NA | NA | NA | NA | 523 | ||
| Peru (Clinton Co.) | 0 | 0 | 0 | 0 | NA | 383 | ||
| Plattsburgh (Clinton Co.) | 0 | 0 | 0 | 0 | NA | 414 | ||
| Plessis (Jefferson Co.) | NA | NA | NA | NA | NA | 412 | ||
| South Colton (St. Lawrence Co.) | NA | NA | NA | NA | NA | 318 | ||
| Stone Ridge (Ulster Co.) | 2 | 0 | 0 | NA | NA | 488 | ||
| Ticonderoga (Essex Co.) | 0 | 0 | 0 | 0 | NA | 402 | ||
| Tivoli (Dutchess Co.) | NA | NA | NA | NA | NA | 551 | ||
| Unadilla (Delaware Co.) | NA | NA | NA | NA | NA | 376 | ||
| ECB – European Corn Borer CEW – Corn Earworm FAW – Fall Armyworm WBC – Western Bean Cutworm NA – not available DD – Degree Day (base 86/50) accumulation Climate Smart Farming |
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| trap catches for the week of 5.26.20 – 6.2.20 |
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