Black Cutworm

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Black Cutworm Trap Network Summary​ 2025​

The early-season arrival of black cutworm moths into Wisconsin was monitored by DATCP again in spring 2025, as it has been for the last quarter of a century. Ahead of the migration, a network of 42 volunteer cooperators set 96 pheromone traps in 36 counties to track arrival dates, estimate regional moth abundance, and determine the timing of significant or intense flights.

T
he first Wisconsin moth catch of 2025 was registered April 2 and initial intense captures (defined as nine or more moths trapped in two nights) were recorded by the Black Cutworm Trap Network April 16. The primary black cutworm damage window for seedling corn opened May 19 across far southern Wisconsin, May 23 at Hancock, and May 31 near Wausau. A total of 4,588 moths were captured in 96 traps during the 10-week trapping program, for an average 48 moths per trap. Despite a moderate risk of localized black cutworm infestations based on the timing of moth arrivals relative to the start of corn planting, favorable field conditions, and locally heavy moth counts, Wisconsin's risk factors for black cutworm infestation did not fully align and extensive cutworm damage to seedling corn was not reported or observed in 2025. A dashboard summarizing cumulative trap counts and peak catch data is provided below.


Moth Counts for the 2025 Season​​

​​County​

Loc​​at​ion​​​​

Wk ​1​

Wk 2​

Wk 3​

Wk 4​

Wk 5​

Wk 6​

Wk 7​​​​

Wk 8​

Wk 9​​​

​​Wk 10​​​​

​​​Wk 11


​Adams

​​Grand Marsh​


​0

​20*​

​43*

​13*

​24*

​38*

​11*

​7

​8

​Barron

​Cameron

​0

​6

​4

​10*

3

​0

​1

​Barron

​Chetek


​0

​5

​4

​6

​5

2​

​9

​Barron

​New Auburn


​0

​0

​0

​2

​0

​0

​1

​Barron

​Poskin

​2

​7

​6

​26*

7

​1

​4

​Barron

​Reeve

​0

​0

​1

​27*

​4

​0

​0

​Barron

​Turtle Lake

​1

​0

​4

​23*

​7

​0

​0

​Brown

​Greenleaf

​0

​4

​13*

​1

​10*

​47*

​12*

​21*

​1

​Buffalo

A​lma

​0

0

1​​

1​​​

4

2

9

11*

4

5​

9

​Buffalo

Gilmanton

​0

​0

​0

​5​​

​0

1

12*

18*

9

18*

8

​Buffalo

Mondovi

​0

​0

​0

​0

​0

​0

2

31*

1

2

​4

​Calumet

​​Sherwood

​2

​4

​2

​11*

​4

​7

​0

​Chippewa

​Cleveland

​1

​1

​0

​11*

​2

0​

​0

​Chippewa

​Eagle Point

​1

​1

​13*

​7

​9

​1

​1

​Chippewa

​Holcombe

​0

​0

​0

​5

​2

​2

​0

​Chippewa

​New Auburn

​0

​3

​3

​10*

5​

​0

​0

Columbia

Cambria

​0

​0

​1

​16​​​​*

​20*

12*

20*

22*

12*

5

​3

Columbia

Columbus

​0

​0

​0

​10​​​*

​3

​3

0

4

2

0

​0

​Columbia

Fall River

​0

0​

​1

​6

​5

0

0

3

4


​Columbia

​Lodi L

​0

​0

​2​​

​6

​2

​3

​5

​7

​4

​2

​0

​Columbia

Lodi M

​0

​0

​1

​1

​2

​0

0

3

0

0

​0

​​​Columbia

Pardeeville

0

0

0

1

1

0

1

0

1

2

​0

Columbia

Portage W

​0

0

1

1

2

1

1

4

0

​1

​0

Columbia

Rio

​0

0

1

8

1

1

0

1

3

​Crawford

​Rolling Grnd

​6

​2

​10*

​3

​3

​0

​Crawford

​Soldiers Grv

​0

​1

​0

​3

​0

​0

Dane

Dane

​0

​0

​0

​5

​1

2

2

6

10*


Dane

De Forest

​0

​0

​3

​4

4​

0

1

4

1


​Dane

​Deerfield

​0

​0

​1

7​

​1

​0

​0

​0

​Dane

Stoughton 1

​0

​0

​36*

3​

20*

2

5

6

10*

8

​2

Dane

Stoughton 2

​0

​0

​2

​28*

​14*

1

1

1

3

0

​0

​Dane

Sun Prairie

​0

​0

​3

​12*

​24*

0

3

4

4


​Dodge

Beaver Dam

​0

0

1

23*

7

1

6

7

3

1

Dodge

Leroy

0

0

3

20*

30*

150*

61*

60*

39*

30*

​3

​Dodge

​Rubicon

​0

​0

​​0

​0

​5

​1

​2

​2

6

​3

​0

Dodge

Waupun

​0

​0

​2

​13*

23*

6

46*

64*

13*

43*

​4

​Door

​​Sturgeon Bay


​17*

​2

​0

0​

​2

​Dunn

​Colfax


​0

​0

​0

​4

​0

​0

​0

​Dunn

​Connorsville

​1

​0

​0

​20*

​2

​0

​0

​Dunn

​Elk Mound



​1

​0

​0

​7

​2​

​0

​0

​Dunn

​Knapp


​0

​1

​4

​4

​0

​0

​0

​Dunn

​Menomonie

​0

​0

​0

​19*

​2

​0

​0

​Fond du Lac

Lamartine

​0

​0

​0

​4

8

15*

2

5

5

4

​1

​Grant

Lancaster 1

​0

​0​​

​5

​21*

31*

10*

11*

14*

9

8

​1

​Grant

Lancaster 2

0

0

0

13*

17*

6

12*

4

4

​3

​0

​Green

Juda

0

0​​​​​

4​​

11*

10*

9

9

0

6

​0

​1

​Green

Monroe


0

0

2

0

0

2

2

0

​0

​Jefferson

Lake Mills

0

0

32*

26*

2

12*



22*

​4

​2

​Jefferson

​Watertown

​6

​44*

​94*

​6



​6

​3

La Crosse

La Crosse E

​0

0

2​​

12*

14*

10*

16**

8

La Crosse

La Crosse W

​0

0

0

4

2

16*

5*

5

​La Crosse

St Joseph

0

0

0

5

12*

29*

45**

7

​​

​Manitowoc

​St Nazianz


​0

​0

​1

​2

​7

​35*

​12*

​21*

​Marathon

Wausau

​0

​0

​0

​0

1

0

2

0

0

​0

​Oconto

Mountain

​0

​0

​0

​1

​7

0

1

9

5

6

​1

​Outagamie

​Grand Chute


​5

​8

​8

​10*

​6

​6

​Outagamie

​Seymour

​24*

​22*

Ozaukee

Fredonia


​0

​2

​13*

​13*

2

6

25*

6

4

​0

Pepin

Durand

​0

0

3​​

3

3

17*

11*

10*

3

3

​0

​Portage

​Stevens Pt

​0

​2

​3

​6


​14**

​10*

​1

​Richland

​Hub City

2​

​4

​28*

​16*

​6

​1

Richland

​Patch Grove

​2

​10*

​10*

​5

​0

​0

​Rock

Albany

​0

​0


​5**

​14*


17**


​Rock

Beloit W

​0

​0

​4

​0

​1

1

0

0


​Rock

Clinton 1


0

0

4

12*

11*

11*


1

​0

Rock

Clinton 3


0

0

6

18*

16*

13*


0

0

​Rock

​​Clinton N

​0

​3

​16*

​14*

​0

2​

​3

​2

​3

​0

Rock

Edgerton 1

​1

​0

​2

​8

​13*

​2

​4

​7

3

2

​4

​Rock

Edgerton 2

0

0

4​​​

5

8

0

11*

2

5

4

​0

Rock

Janesville N

​0

0

0

5

27*

9

4

0

3

0

​2

Rock

Janesville S

0

0

0​​

0

9

4

4

0

5

​0

​0

​Rusk

​Bruce E


​0

​0

​0

​1

​0

​0

​0

​Rusk

​Bruce NW

​0

​0

​9

​10*

​2

​0

0​

​Rusk

​Strickland

​0

​0

​1

​3

​2

​1

​0

​Rusk

​Sumner

​0

​2

​7

​11*

​5

​0

​0

​Rusk

​​Willard

​0

​0

​0

​1

​0

​0

​0

Sauk

Baraboo E

​0

​0

​1

​14*

​25*

1

0

4

6



​Sauk

Baraboo N

​0

​0

​2

6

4

0

1

3

4

Sauk

Baraboo S

​0

​0

0​​

2

4

0

1

4

4

Sauk

Prairie du Sc

​0

​0

​4

35*

16*

2

4

16*

9

​Sauk

Reedsburg

​0

​0

​5

​7

13*

2

11*

4

​0

​1

Sauk

Spring Green

0

0

2​​

7

9

0

3

9

3

2

​0

​Shawano

​​Gresham

​0

​8

​28*

​14*

​0

​2

​Sheboygan

​Oostburg


​0

​2

​2

​9

​36*

​11*

​8

​33*

​17*

Sheboygan

Sheboygan

0​

​4

41​​*

82*

58*

10*

39*

23*

21*

35*

​6

​Trempealeau

​​Ettrick


​0

​0

​8**

​3

​12*

​8

​9

​0


​1

​Vernon

​Dell


​0

​0

​0

​3

​1

​0

​Vernon

​​Hillsboro


2​

​4

​1

​5

​0

​0

​Walworth

​Delavan


​0

​0

​1

​0

​9

​1

​1

​7

​0

​0

​Walworth

​Delavan 2


​3

​4**

​0

​0

​1

​Walworth

East Troy

​1

​6

​6

​7

​1

​1

1

1

​0

​Walworth

Sharon

​0

3

13*

18*

1

8

7

8

5

​1

​​Washington

​Bolto​nville


​0

​0



​1

​Waushara

​Almond



​0

​21*

​53*

​28*

​​4

​8

​5

​6

​Waushara

​W Bloomfield

​0

​3

​3

​2

​1

​0

​Winnebago

​Omro




​0

​2

​3

​3

​6

​Wee​k 1 (Mar 28-Apr 3);  Week 2 (Apr 4-10); Week 3 (Apr 11-17); Week 4 (Apr 18-24); Week 5 (Apr 25​-​May 1); 

Week 6 (May 2-8); Week 7 (May 9-15); Week 8 (May 16-22); Week 9 (May 23-29); Week 10 (May 30-Jun 5); 
Week 11 (June 6-12); ​*Significant or intense capture of nine or more moths in two nights; **14-day period. ​

Multistate migration maps are available at Great Lakes and Maritimes Pest Monitoring Network​​  (select BCW tab) and Black Cutworm corn ipmPIPE.

​​

​​​​​​