White oil is an insecticide spray used for controlling a wide range of insect pests in the garden. The spray works by blocking the breathing pores of insects causing suffocation and death. It is effective in the control of aphids, scale, mealy bug, mites, and smooth skinned caterpillars. The active ingredient in Sharp Shooter White Oil is completely harmless to the environment, humans and pets. Sharp Shooter White Oil is an all seasons product that can be used safely all year round.