Kills mosquitoes and provides residual control of mosquitoes, including mosquitoes that may carry West Nile Virus. May be used with injection tube for easy application into cracks and crevices. For use in homes, hotels, motels, restaurants, barns, milk rooms, piggeries, hospitals, aircrafts, boats, trains, trucks and many other areas. The Canadian and US Military uses the same active ingredient at the same concentration to treat the exterior of their clothing to prevent mosquitoes and several other biting insects from biting the soldiers!