Controls insects up to 4 weeks! Eight is a contact and residual insect control spray that is effective for up to 4 weeks. Kills over 100 insects which destroy lawns, roses, flowers, trees, shrubs, vegetables, fruit, and nuts. Apply to lawns and other areas to stop infestations of flies, ticks, fleas, mosquitoes, ants- all flying, crawling and hopping insects. Even great for houseplants! Mix 1-3 oz. per gallon.