05/21/2026
Alfalfa weevil season is starting in Wisconsin. This video shares early 2026 scouting updates from the Arlington Research Station, including what alfalfa weevil larvae look like, where they are being found, and how to assess damage. Learn the key treatment threshold, why sweep nets alone are not enough, and when early cutting is the best management option.
Resources Mentioned:
Managing Alfalfa Weevil in Wisconsin Alfalfa Fields: https://cropsandsoils.extension.wisc.edu/articles/managing-alfalfa-weevil-in-wisconsin-alfalfa-fields/
DATCP Trapping Network Page: https://datcp.wi.gov/Pages/Programs_Services/TrapNetworks.aspx
Insect Pest Text Alert Service: https://cropsandsoils.extension.wisc.edu/pest-management/insect-pest-alerts/
https://www.youtube.com/watch?v=ZDWF4xR28zw
Alfalfa weevil season is starting in Wisconsin. This video shares early 2026 scouting updates from the Arlington Research Station, including what alfalfa wee...