Doktor Doom Go Green Pyrethrin Powder 600gPyrethrin powder is odour free, does not discolour, is not harmful to animals and provides residual control as long as its present & can be used both indoors and outdoors! Effective when used to get rid of bed bugs, ants, cockroaches, silverfish, spiders, earwigs, sowbugs, crickets, certain beetles, box elder bugs, fleas The Doktor Doom Go Green Pyrethrin Powder is derived from the Chrysanthemum Plant Ready to use