Corn Earworm

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​Pheromone traps have been established at sites throughout Wisconsin to monitor late-season migration flights of corn earworm moths. The results will be published below and updated weekly starting in late June and continuing through early September.​​​

Counts for the ​Week Ending September 2​​, 2021​​​​


CountyLocationWeek 1Week 2Week 3Week 4Week 5Week 6Week 7Week 8Week 9​Week 10
ColumbiaArlington8061011222023811579 
ColumbiaArlington N104666328155377952 
ColumbiaPardeeville1000001415 
DaneBristol 50232 60  
DaneCottage Grove 0312432356172 
DaneSun Prairie E 10715 862 
DaneSun Prairie N 332212614145 
DodgeBeaver Dam4293591825129230 
DodgeMayville1037272430115704854 
DodgeWatertown 2043246067114 
Fond du LacRipon521609106858960 
ManitowocManitowoc 108171338250 
MarathonWausau000000006 
VernonCoon Valley 011091838  
WausharaHancock 0 0007323057 
WoodMarshfield112000030 
Key:  Week 1 (July 1-7), Week 2 (July 8-14), Week 3 (July 15-21), Week 4 (July 22-28), Week 5 (July 29-August 4), Week 6 (August 5-11), Week 7 (August 12-18), Week 8 (August 19-25), Week 9 (August 26-September1), Week 10 (September 2-8) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​