Twenty-one sites reporting this week. Twelve sites reporting European corn borer (ECB)-E and twelve sites reporting ECB-Z. Corn earworm (CEW) was caught at nine sites with six sites high enough to require a spray. Nine sites reporting Fall armyworm (FAW) and eighteen reporting Western bean cutworm (WBC).
Where CEW are being caught in high enough numbers to determine the spray schedule (see the chart below), 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 other pests are not above threshold. Click on the scouting and thresholds information link to the right for more information.
The average degree days for the trap sites is 1606 base 50 (starting May 1), so the majority of WBC moths should have emerged according to the University of Nebraska model. Looking at the graph below it appears that WBC has leveled off this week but has not started to decline.
Average sweet corn trap catches for all reporting sites from 5.25.15 – 8.11.15
Percent WBC moth emergence, data from University of Nebraska
| Location | ECB-E | ECB-Z | CEW | FAW | WBC | Total WBC to date |
DD to date |
| Avoca (Steuben Co.) | 0 | 0 | 2 | 2 | 10 | 17 | 1464.5 |
| Avon (Livingston Co.) | 2 | NA | 5 | 0 | 4 | 25 | 1758.7 |
| Baldwinsville (Onondaga Co.) | 13 | 1 | 1 | 3 | 13 | 113 | 1683.9 |
| Batavia (Genesee Co.) | NA | NA | NA | NA | NA | 19 | 1296.4 |
| Belfast (Allegany Co.) | 3 | 2 | 0 | 0 | 1 | 4 | 1520.2 |
| Bellona (Yates Co.) | 7 | 6 | 0 | 28 | 108 | 141 | 1781.2 |
| Eden (Erie Co.) | 3 | 1 | 2 | 2 | 261 | 876 | 1581.5 |
| Farmington (Ontario Co.) | 0 | 0 | 0 | 0 | 1 | 19 | 1596.7 |
| Hamlin (Monroe Co.) | 3 | 2 | 4 | 2 | 22 | 43 | 1605.2 |
| Kennedy (Chautauqua Co.) | 0 | 0 | 0 | 1 | 35 | 73 | 1417.5 |
| King Ferry (Cayuga Co.) | NA | NA | NA | NA | NA | 23 | 1687.6 |
| Kirkville (Madison Co.) | 1 | 1 | 1 | 0 | 7 | 16 | 1784.9 |
| LeRoy (Genesee Co.) | 2 | 2 | 0 | 0 | 12 | 37 | 1556.1 |
| Lockport (Niagra Co.) | 0 | 4 | 4 | 0 | 0 | 25 | 1571.7 |
| Oswego (Oswego Co.) | NA | NA | NA | NA | NA | 77 | 1599.2 |
| Owego (Tioga Co.) | 4 | 5 | 0 | 0 | 3 | 7 | 1519.6 |
| Pavilion (Genesee Co.) | 0 | 0 | 0 | 12 | 184 | 466 | 1556.1 |
| Penn Yan (Yates Co.) | 1 | 4 | 1 | 11 | 17 | 64 | 1727.3 |
| Plessis (Jefferson Co.) | 0 | 0 | 0 | 0 | 63 | 215 | 1567.8 |
| Preble (Cortland Co.) | 1 | 0 | 0 | 0 | 12 | 28 | 1663.0 |
| Seneca Castle (Ontario Co.) | 44 | 4 | NA | 1 | 1 | 16 | 1635.4 |
| Sherwood (Cayuga Co.) | NA | NA | NA | NA | NA | NA | 1687.6 |
| Spencerport (Monroe Co.) | 0 | 2 | 3 | 0 | 0 | 4 | 1758.7 |
| Waterport (Orleans Co.) | 0 | 0 | 0 | 0 | 1 | 7 | 1605.2 |
| Williamson (Wayne Co.) | 0 | 0 | 0 | 0 | 0 | 0 | 1525.7 |
| 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 8.4.15 – 8.11.15 |
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