"Active ingredient pyrethrin is derived from an African chrysanthemum. Works quickly to paralyze and kill most insects on contact, including aphids, blister beetles, caterpillars, cutworms, fireworms, flea beetles, flies, gnats, harlequin bugs, lacebugs, leafhoppers,leaf rollers, loopers, mealybugs, mites, mosquitoes, moths, scale, stink bugs, thrips, wasps, webworms and whiteflies. Use on house plants, flowers, trees & shrubs. Safe on African violets, orchids and other tender tropicals. Piperonyl butoxide is extremely toxic to bees and other pollinators, so apply carefully to outside plants, avoiding flowers when possible."