Terro 16 oz Ant Killer Aerosol  T401 Kills ants on contact and provides long-lasting residual control up to 12 weeks Also effective against cockroaches, silverfish, crickets, scorpions, spiders, centipedes and multicolored Asian lady beetles Permethrin delivers long-lasting residual repellency Convenient, easy-to-use aerosol spray bottle and spray tube attachment puts product where ants live Can be used indoors or outdoors