Suppression with Acaricides of Twospotted Spider Mite Populations on Florida Strawberries12

Suppression of Tetranychus urticae Koch populations on strawberries by acaricides was studied during the 1969, 1970, and 1971 seasons. Classes of compounds used were cyclic carbonate, organic phosphate, chlorinated hydrocarbon, carbamate, formamidine, sulfite, and Organotin. Superior population suppression was achieved with cyclic carbonate, sulfite, and organotin compounds at 4 ounces active ingredient per acre. The poor performance of chlorinated hydrocarbon and Organic phosphate compounds in suppressing populations suggests field resistance is present in the mites.