Black Light Traps

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​Pest Survey Program cooperators across t​he 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 b​e updated weekly through August.​

Moth Counts available May 202​​​6

PestBeaver DamWausau EWausau NEast TroyMarshfield

Bl​ack cutworm


Celery looper






Corn earworm





Dingy cutworm


European corn borer


​Forage looper


​Spotted cutworm


​True armyworm


​Variegated cutworm


​Western bean cutworm

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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. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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Contact​​

Tracy Schilder
tracy.schilder@wi.gov

Pest Hotline
(866) 440-7523​​

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