Sluggo Plus kills insects, slugs, and snails. This easy-to-use pellet formula is for outdoor use. It can be used in vegetable gardens, fruit trees, lawns, flowers, shrubs and non-commercial greenhouses. It combines iron phosphate and Spinosad, a natural substance that is toxic to a variety of garden pests including slugs, snails, pillbugs, cutworms, sowbugs and earwigs.