Alfalfa weevils may have taken a hit when Iowa temperatures dipped below 20 degrees. Iowa State University extension field crop specialists were not finding live larvae in fields they inspected as of early last week. Iowa State entomologists say alfalfa weevil problems may be minimal this spring, especially in fields where larvae hatched. However, some larvae may not have hatched, so fields should still be scouted, especially in central and northern Iowa, they say
Alfalfa weevil larvae are reportedly feeding in southwestern Michigan in the Paw Paw area, according to Michigan State University. The southeastern part of the state was not reporting weevil activity as of last week.