Alfalfa weevil scouting video available now
Bryan Jensen, University of Wisconsin Integrated Pest Management Program
This easy 3 minute video takes you into the field to show how to scout and manage alfalfa weevil by following IPM practices and University of Wisconsin recommendations. Click here to view the clip if you cannot see the clip below.
Scout by walking a “W” pattern and picking 50 stems at random. Evaluate for pinhole or lacing type feeding damage on the leaves on each stem. Management threshold is reached if 40% or more of the collected stems show tip feeding. Management may be achieved by harvesting early or following control recommended in UWEX publication A3646 “Pest Management in Wisconsin Field Crops”. Fields with high damage should be checked during regrowth for green up.
For more information:
Or contact your local UWEX agent.