Corn Earworm

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Corn Earworm Banner

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

Moth Counts for the Week Ending July 17, 2025​

County​ Location

Wk 1

Wk 2

Wk 3

Wk 4

Wk 5

Wk 6

Wk 7

Wk 8

Wk 9

Wk 10
Wk 11​​​
Wk 12​
C​​​olumbia
Pardeeville

4
2


​Dane
Sun Prairie E

168
11


Dane
Sun Prairie N

227
29
​Dodge
​Beaver Dam

9

Dodge
Leroy

252

Dodge
Watertown

123
23
​Jackson
​Taylor

MarathonWausau

0
0
Rock
Clinton
276
201
37
​Vernon
​Coon Valley
​0
​15
Walworth
Burlington

​Waushara
​​Hancock
14
1
Wood
Marshfield
10
0
​​

Week 1 (Jun 30-Jul 03), Week 2 (Jul 04-10), Week 3 (Jul 11-17), Week 4 (Jul 18-24), Week 5 (Jul 25-31), ​Week 6 (Aug 01-07), Week 7 (Aug 08-14), Week 8 (Aug 15-21), Week 9 (Aug 22-28), Week 10 (Aug 29-Sep 4​), Week 12 (Sep 5-11), Week 13 (Sep 12-18).

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