Ground-applied ULV, cold aerosol, insecticide sprays were evaluated against caged adult female Anopheles quadrimaculatus. Treatments included 2 rates each of resmethrin, permethrin and a water-based permethrin formulation. Mortality at 24 h posttreatment was not significantly (P greater than or equal to 0.05) different between the resmethrin and water-based permethrin treatments. Both rates of permethrin were significantly (P less than 0.05) less effective than the other treatments.