Several types of insecticides were applied to soybean during August and early September for control of bean leaf beetle. Four of these insecticides have relatively long-to-moderate preharvest intervals of either 60 days (Ambush and Pounce), 45 days (Warrior), or 28 days (Lorsban). Several questions have been asked about who is responsible and liable for following the preharvest interval for an insecticide if it was custom applied to a farmer's field.
Iowa State University
Rice, Marlin E., "Soybean insecticide preharvest interval" (2002). Integrated Crop Management News. 1806.
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