FMC Dos Flea And Crawling Insect SprayDos Flea and Crawling Insect Spray controls fleas, ants, cockroaches, crickets, centipedes, carpet beetles, firebrats, pillbugs, silverfish, spiders, scorpions, house spiders, black widows, sowbugs and ticks. Controls Fleas for Seven Months Controls Cockroaches for Four Months Breaks the Life Cycle of Roaches and Fleas Prevents Development of Biting and Reproducing Fleas Prevents Development of Reproducing Roache