Degree-day information indicates that alfalfa weevil larvae have hatched throughout much of southern and central Iowa. Proper management of this insect requires timely scouting, correct identification, determination of population levels, and if necessary, cultural or chemical control.
Iowa State University
Rice, Marlin E. and Pope, Richard O., "Scouting and management of alfalfa weevils" (2002). Integrated Crop Management News. 1700.
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