Doktor Doom Spider Mite Knockout is made with a 0.2% pyrethrin concentration—an unscented and very effective substance used to control aphids, two-spotted spider mites, whiteflies, leafhoppers, Japanese beetles and more. It is safe for indoor and outdoor use, and can be applied on food crops up to one day before harvest. Spider Mite Knockout is equipped with a special valve, which sprays in all directions, making it easy to treat the underside of the plant foliage to effectively kill spider mites and other leaf-eating insects. EPA registered.
