Pest Survey Program cooperators across the state maintain black light traps to monitor moth flights as an early warning of potential pest problems. Insect counts reported each week can alert growers to the emergence, abundance, and seasonal occurrence of a variety of nocturnal agricultural pests. The results are presented below and will be updated weekly through August.
Week ending August 21, 2025
| County | Location | Bcw | Cel | Cew | Dcw | Ecb | For | Scw | Taw | Vcw | Wbc |
Dodge
| Beaver Dam
| 1
| 6
| 55
| 32
| 7
| 17
| 0
| 46
| 0
| 0
|
Fond du Lac
| Ripon |
| | | | | | | | |
|
Marathon
| Wausau E
| 3
| 0
| 6
| 105
| 5
| 3
| 136
| 62
| 0
| 6
|
Marathon
| Wausau N
| 0
| 2
| 0
| 19
| 0
| 0
| 8
| 8
| 0
| 6
|
| Walworth | East Troy
| 0
| 0
| 0
| 56
| 0
| 12
| 0
| 10
| 0
| 0
|
| Wood | Marshfield | 0
| 0
| 0
| 3
| 0
| 0
| 1
| 7
| 0
| 0
|
Key to insects: Bcw = Black cutworm; Cel = Celery looper; Cew = Corn earworm; Dcw = Dingy cutworm; Ecb = European corn borer; For = Forage looper; Scw = Spotted cutworm; Taw = True armyworm; Vcw = Variegated cutworm; Wbc = Western bean cutworm. |
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