Cyper WSP is an economical pyrethroid that provides fast knockdown and residual control of more than 30 different pests.  Control ants, spiders, cockroaches, and other insects using 40% Cypermethrin contained in 49 water soluble packets (WSP).  Effective Against: ants, aphids, bees, boxelder bugs, carpenter ants, chiggers, cockroaches, fleas, flies, mites, mosquitoes, silverfish, spiders, ticks, wasps