Ag & Natural Resources Extension Educator, Purdue Extension Whitley County
COLUMBIA CITY – If you are involved with alfalfa production, you may recall some springtime discussions and news articles in 2025 about alfalfa weevil and the potential issue for insecticide resistance. Specifically, Purdue field crops pest management specialist Christian Krupke said there were anecdotal reports that pyrethroids may not be working quite as well as they have in the past.
Before going on, let’s review some facts about alfalfa weevil…