Thirty sites reported this week. European corn borer (ECB)- E was caught at five sites and ECB-Z was caught at four sites. The hybrid ECB was caught at four of the seven sites trapping for it: Geneva (1), Hurley (7), Penn Yan (1), and Sherwood (1). Twenty-two sites reported corn earworm (CEW) catches this week with twenty sites high enough to be on a 4, 5, or 6 day spray schedule (see table at bottom of post). Fall armyworm (FAW) was caught at thirteen sites and Western bean cutworm (WBC) was caught at twenty-six sites. According to the Hanson model, >90% of WBC flight emergence occurred at most sites.
NEWA Western bean cutworm flight emergence lookup table.
Average sweet corn trap catches for all reporting sites from 5.31.22 –8.9.22.
Western bean cutworm peaked last week, but CEW is still increasing. At sites where CEW are being caught in high enough numbers to determine the spray schedule, those applications will be sufficient to take care of other worm pests that are present. Where CEW are not determining the spray schedule, scout to be sure that FAW and other pests are not above threshold.
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- Fall armyworm egg mass.
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- Fall armyworm larva, note the inverted ‘Y’ om head capsule.
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- Feeding damage. Photo: Darcy Telenko
| Location | ECB-E | ECB-Z | CEW | FAW | WBC | DD | |
| Western NY trap Catch |
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| Baldwinsville (Onondaga Co.) | 0 | 0 | 18 | 8 | 12 | 3084 | |
| Batavia (Genesee Co.) | 0 | 0 | 1 | 0 | 12 | 3082 | |
| Bellona (Yates Co.) | 0 | 0 | 2 | 11 | 86 | 3153 | |
| Collins (Erie Co.) | NA | NA | NA | NA | NA | 2936 | |
| Eden (Erie Co.) | 0 | 0 | 13 | 14 | 15 | 3067 | |
| Farmington (Erie Co.) | 8 | 1 | 0 | 0 | 3 | 3149 | |
| Geneva (Ontario Co.) | 0 | 0 | 5 | 0 | 1 | 3120 | |
| Hamlin (Orleans Co.) | 0 | 6 | 19 | 9 | 31 | 3027 | |
| King Ferry (Cayuga Co.) | 0 | 0 | 7 | 53 | 39 | 3068 | |
| Kirkville (Madison Co.) | NA | NA | NA | NA | NA | 3112 | |
| LeRoy (Genesee Co.) | 0 | 0 | 6 | 0 | 15 | 3063 | |
| Lyndonville (Orleans Co.) | 0 | 0 | 9 | 0 | 15 | 3001 | |
| Oswego (Oswego Co.) | 0 | 0 | 0 | 0 | 64 | 2862 | |
| Panama (Chautauqua Co.) | 0 | 0 | 6 | 0 | 7 | 2726 | |
| Penn Yan (Yates Co.) | 0 | 4 | 9 | 0 | 1 | 3078 | |
| Portville (Cattaraugus Co.) | 16 | 0 | 7 | 6 | 2 | 2732 | |
| Preble (Cortland Co.) | NA | NA | NA | NA | NA | 2755 | |
| Ransomville (Niagara Co.) | 1 | 0 | 0 | 0 | 1 | 3103 | |
| Seneca Castle (Ontario Co.) | 0 | 0 | NA | 0 | 3 | 3062 | |
| Sherwood (Cayuga Co.) | 0 | 0 | 3 | 20 | 5 | 3090 | |
| Williamson (Wayne Co.) | 0 | 0 | 17 | 0 | 48 | 2857 | |
| Eastern NY trap Catch |
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| Accord (Ulster Co.) | 1 | 0 | 6 | 8 | 0 | 3361 | |
| Afton (Chenango Co.) | 0 | 0 | 1 | 0 | 1 | 2773 | |
| Feura Bush (Albany Co.) | 0 | 0 | 28 | 15 | 14 | 3228 | |
| Florida (Orange Co.) | NA | NA | NA | NA | NA | 3416 | |
| Greenwich (Washington Co.) | NA | NA | NA | NA | NA | 3155 | |
| Hurley (Ulster Co.) | 0 | 0 | 24 | 0 | 0 | 3240 | |
| Kinderhook (Columbia Co.) | 0 | 0 | 8 | 0 | 4 | 3247 | |
| Melrose (Rensselear Co.) | NA | NA | NA | NA | NA | 3179 | |
| Peru (Clinton Co.) | 0 | 0 | 0 | 1 | 108 | 2945 | |
| Plattsburgh (Clinton Co.) | 0 | 1 | 0 | 1 | 213 | 3012 | |
| Plessis (Jefferson Co.) | 0 | 0 | 0 | 1 | 22 | 2858 | |
| South Colton (St. Lawrence Co.) | NA | NA | NA | NA | NA | 2561 | |
| Stone Ridge (Ulster Co.) | 0 | 0 | 5 | 0 | 0 | 3199 | |
| Ticonderoga (Essex Co.) | 1 | 0 | 0 | 0 | 19 | 3033 | |
| Tivoli (Dutchess Co.) | 0 | 0 | 4 | 0 | 0 | 3370 | |
| Unadilla (Delaware Co.) | 0 | 0 | 11 | 23 | 35 | 2714 | |
| ECB – European Corn Borer CEW – Corn Earworm FAW – Fall Armyworm WBC – Western Bean Cutworm NA – not available DD – Degree Day (base 38) March 1st accumulation Climate Smart Farming |
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| trap catches for the week of 8.2.22 – 8.9.22 |
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Interactive Sweet Corn Pheromone Trapping Network Map
Dry Bean Western Bean Cutworm Alert
8.9.22
This year we are monitoring 12 WBC traps placed next to dry bean fields. Dry bean growers should scout adjacent corn for WBC eggs and larvae when cumulative trap catch reaches 50 moths. All sites except Pavilion have reached 50 cumulative moths. Peak flight for most of the sites happened last week (numbers in red below). All dry bean growers should begin scouting pods for WBC feeding about 10 days after peak flight regardless of cumulative trap catch, and should continue to scout for three weeks, especially if damage has been seen in recent years.
Check 10 random spots in a field, 5 plants per spot. Inspect all the pods on the plants looking for holes. Surface feeding can be caused by other insects. WBC will mine directly into the pod and will often feed on the seed inside. European corn borer will also feed inside the pod and would most likely still be present. If there is damage going directly into the pod and seed but no larva present, it is quite possibly WBC. During the day WBC larva are not actively feeding in the pod, instead they drop to the soil and will remain there until night. Fresh damage will be green, not brown.
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- Early damage made by small WBC larvae.
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- ECB in pod.
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- Damage caused by slug feeding, note slime trail.
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- Later feeding damage going through pod and into beans.
This project is funded by the NYS Dry Bean Industry.
| Dry Bean Location | 7.5.22 | 7.12.22 | 7.19.22 | 7.26.22 | 8.2.22 | 8.9.22 | Cumulative WBC |
| Alexander (Genesee Co.) | 0 | 1 | 11 | 18 | 23 | 9 | 62 |
| Avoca Hill (Steuben Co.) | 0 | 1 | 10 | 31 | 53 | 23 | 118 |
| Avoca Valley (Steuben Co.) | 0 | 2 | 4 | 19 | 28 | 23 | 76 |
| Caledonia (Livingston Co.) | 1 | 3 | 8 | 25 | 36 | 36 | 109 |
| Churchville (Monroe Co.) | 0 | 3 | 30 | 36 | 31 | 24 | 124 |
| LeRoy (Genessee Co.) | 0 | 2 | 67 | 92 | 95 | 64 | 320 |
| Pavilion (Genesee Co.) | 0 | 1 | 5 | 4 | 3 | 5 | 18 |
| Penfield (Monroe Co.) | 3 | 2 | 26 | 94 | 120 | 85 | 330 |
| Penn Yan 1 (Yates Co.) | 1 | 2 | 6 | 19 | 29 | 20 | 77 |
| Penn Yan 2 (Yates Co.) | 0 | 0 | 12 | 7 | 31 | 11 | 61 |
| Wayland (Steuben Co.) | 1 | 1 | 4 | 34 | 90 | 47 | 177 |
| Wyoming (Wyoming Co.) | 0 | 3 | 24 | 13 | 13 | 1 | 54 |
| Western Bean Cutworm trap counts by date NA – not available |
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