density populations they can harbor and their presence in urban settings. Water in
experimental tires was treated with one of three insecticides or an untreated control. Aquatic
invertebrates were sampled at weekly intervals. Eggs, larval and pupal samples were
laboratory-reared to estimate seasonal fluctuations in Aedes aegypti and Ae. albopictus
abundance. Results Spinosad treatments at 1 or 5 ppm (mg ai/liter) provided 6–8 weeks of …