Concentrate. Excellent multi-use insecticide. Controls a wide range of nuisance insects outdoors, including mosquitoes. Can be used on ornamentals, roses, flowers, shrubs, trees, fruits, citrus, vegetables, and home foundation. Makes up to 96 gallon of diluted spray. Easy-to-apply with an Ortho Dial N Spray or a tank sprayer. 32 oz bottle. Active ingredient: 50% Malathion.