Fertilome Natural Guard Horticultural Oil RTS is a natural insecticide that targets and controls a wide range of insect pests. it is ideal for organic gardening since it can be used on fruits, vegetables, roses, trees, houseplants, and flowers. It kills pests like mites, aphids, scales, mealybugs, adelgids, whiteflies, immature plant bugs, leafhoppers, psyllids, whiteflies, and sawfly larvae at any life stage, including eggs. This horticultural oil comes in a ready-to-spray formula that can be applied as a dormant and growing season insect spray.