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.
Moth Counts available May 2026
|
County |
Location |
Bcw |
Cel |
Cew |
Dcw |
Ecb |
For |
Scw |
Taw |
Vcw |
Wbc |
Dodge
|
Beaver Dam
|
| | | | | | | | |
|
Marathon
|
Wausau E
|
| | | | | | | | |
|
Marathon
|
Wausau N
|
| | | | | | | | |
|
|
Walworth |
East Troy
|
| | | | | | | | |
|
|
Wood |
Marshfield |
| | | | | | | | |
|
Key: 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. |
Trap Data & Instructions 2026
Additional Resources
Great Lakes and Maritimes Pest Monitoring Network
Corn ipmPIPE
Pest Survey Program
Trap Check Calendar 2026
Bucket Trap Assembly
How-to Videos
Degree Days
<< Back to main Pest Survey page