True Armyworm

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​TrueArmywormBanner.JPG

Pheromone traps have been established at sites throughout Wisconsin to monitor early-season flights of true armyworm moths. Counts from the trapping su​rvey provide data on the ti​ming of local moth flights and may be useful for plannin​g field scouting activities. The results of the survey are presented below and will be updated weekly from April 2 through July 30.​​
​​​​

Moth Counts for the Week Ending May 8, 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
Wk ​13
Wk ​14
Wk ​15
Wk ​16
Wk ​17
Wk​​​18

​Adams

​Grand Marsh


​0

​5

​28

​17


​Brown
​​Holland​
​2
​28
​23
​71



Columbia

Cambria

​0

​0

​0

​20

31

46



​Columbia​

Columbus

​0

​0

​0

​1

​2

​2


Columbia

Lodi L

0​

​1

​3

​18

15

18​​​​​​



Columbia

Lodi M

​4

​4

​12

​6

5

5


​Columbia

Pardeeville

​0

​0

​0

​21

45

​​​12

​Columbia

Portage W

​0

​1

​3

​3

​0

​2




​Dane
​Deerfield
​3
​41
​49

​Dane

Stoughton 1

​0

​0

​24

​138

​276

​4



​Dane

Stoughton 2

​0

​0

​8

​29

​27

​30


Dodge

Beaver Dam

​0

​1

​10

​20

​73

​35


​Dodge

Leroy

​0

​0

​4

​21

​14

​50



​Dodge

Rubicon

​0

​0

​1

​3

​8

​4


​Dodge​

​Waupun

​0

​0

​7

​142

​153

​51

Fond du​ Lac

Johnsburg

0

0

​​0

16
45
31

Grant

Lancaster 1

​0

​0

​42

​203

113
42

Grant

Lancaster 2

​0

​0

​36

​218

134

42

​​Green

Juda

​0

0

100
474
470
194
​Green
​Monroe


​6​
​35
​52
​3

​Jefferson

​Lake Mills

​0

​0


​45

​772

​15

​Jefferson​
​Watertown 
​39
​6

​Manitowoc
​St Nazianz

​0
​0
​0
​2

​Oconto

​Mountain

​0

​0

​0

​0

​1

​​0


​Outagamie
​Grand Chute

​14
​Outagamie

​​Seymour
​19

​Ozaukee

​Fredonia

​0

​1

​14

​12

​6


​Pepin

​Durand

​0

​0

​1

​0

​5

​6


​Portage

​​Stevens Pt.​

​0

​6

​0


​Rock

​Albany

​0

​0


​35

​157

​Rock

​Beloit W

​0

​0

​0

​12

​1

​0

​Rock

​Clinton 2

​0

​1

​35

​18

​1

​Rock

​Clinton 4

​0

​0

​2

​20

​0

​Rock

​Clinton N

​0

​2

​102

​27

​3

Rock​

​Edgerton 1

​1

​0

​1

​18

​21

​4


​Rock

​Edgerton 2

​0

​0

​1

​18

​25

​0

​Rock

​Janesville N

​0

​0

​0

​5

​5

​6

​Rock

​Janesville S

​2

​0

​1

​4

​11

​0



​Sauk

​Reedsburg

​0

​1

​30

​59

8


​Sauk

​Spring Green

​0

​0

​0

​2

​6

4

​​

​Sheboygan
​Boltonville
​0
9



​Sheboygan
​Oostburg

​0
​4
​2
​8

​Sheboygan

Sheboygan

​0

​0

​0

​8

​6

​18

​Tremp.

​​Ettrick

​0

​5

4​

​8

1​

​3


​Walworth

​​Burlington

​0


​5


​Walworth

​​Delavan

​0

​0

​44

​139

​53

​83




​Walworth​
​Delavan 2

​79
143​


​Walworth

​East Troy

​1

​34

​14

​6




​Walworth

Sharon​

​0

​11

​74

​116

​53


​Waushara

​Almond

​0
​4
5​5
​​Waushara
​W Bloomfield
​8
​​
​Winnebago
​Omro




​​5
​1

​​W​ee​k 01 (Mar 28-Apr 3); Week 02 (Apr 4-10); Week 03 (Apr 11-17); Week 04 (Apr 18-24); Week 05 (Apr 25​-May 1); 
Week 06 (May 2-8); Week 07 (May 9-15); Week 08 (May 16-22); Week 09 (May 23-29); Week 10 (May 30-Jun 5); 
Week 11 (Jun 6 -12)Week 12 (Jun 13-19); Week 13 (Jun 20-26); Week 14 (Jun 27-Jul 3); Week 15 (Jul 4-10); 
Week 16 (Jul 11-17); Week 17 (Jul 18-24); Week 18 (Jul 25-31​). * Trap count represents a two-week period.

2023mapblackcutworm042723c.png























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