The Safer Brand yard and garden insect killer combines the effectiveness of pyrethrins and potassium salts of fatty acids and kills on contact but does not harm your plants. Kills aphids, asparagus beetles, bag worms, bean beetles, cabbage loopers, caterpillars, Colorado potato beetles, cucumber beetles, diamondback moth larvae, flea beetles, gypsy moth larvae, imported cabbageworm, Japanese beetles, leafhoppers, mealy bugs, plant bugs, scales, spider mites, thrips, tomato hornworm and whiteflies on contact.