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 September 17-23, 2026
Columbia
| Keyeser
| -
| 3
| 27
| 21
| 20
| 24
| 185
| 77
| 111
|
| 200
| 121
|
Columbia
| Lodi
| 15
| 16
| 37
| 49
| 27
| 53
| 173
| 173
| 405
| 1,855 | 957
| |
Columbia
| Pardeeville
| 0
| 0
| 20
| 25
| 14
| 3
| 28
| 42
| 49
|
| 797
| 23
|
Dane
| Fitchburg
| -
| 32
| 18
| 20
| 15
| 9
| 200
|
| 633
| | 426
| 450
|
Dane
| Sun Prairie N
| -
| 16
| 35
| 20
| 11
| 40
| 250
| 260
| 240
|
| 154
| 356
|
Dane
| Sun Prairie S
| -
| -
| 15
| 16
| 22
| 37
| 100
| 75
| 72
| | 92
| 110
|
Dodge
| Beaver Dam
| 8
| 4
| 24
| 48
| 20
| 14
| 43
| 257
| 315
| 568
| 418
| 42
|
Dodge
| Leroy
| 0
| 3
| 29
| 12
| 6
| 3
|
| 188
| 220
| 308
| 267
| 100
|
Dodge
| Watertown W
| -
| 6
| 31
| 33
| 12
| 12
| 50
| 53
| 100
|
| 213
| 300
|
Green Lake
| Green Lake
| 0
| -
| 34
| 23 | 23
| 9
|
| 34
| 33
| 287 | 558
| |
Marathon
| Wausau
| 1
|
| 0
| 0
| 0
| 0
| 0
| 0
|
0
| 1
| 0
| |
Rock
| Janesville
| -
| -
| -
| -
| -
| 48
| 520
| 230
| 180
| 730
| 419
| 325
|
Vernon
| Coon Valley | -
| 0
| 0
| 0
| 3
| 6
| 65
| 35
| 72
| 172
| 15
| 33
|
Walworth
| Burlington | 36
| 6
| 14
| 8
| 4
| 111
| 224
| 64
| 157
| | 424
| 124
|
Walworth
| Williams Bay | 33
| 34
| 13
| 12
| 6
| 134
| 676
| 332
| 495
| 409
| 377
| 63
|
Waushara
| Hancock
| 2
| 2
| 10
| 0
| -
| 4
| 4
| 6
|
| 680
|
| 168
|