With Ortho® Home Defense® Insect Killer for Lawn & Landscape Concentrate, you can kill listed bugs outside before they come inside. Start creating a bug barrier in minutes and enjoy 3-months of protection*. Satisfaction guaranteed or your money back. Each 32 oz. bottle treats up to 5,300 sq. ft. *Applies to ants, fleas, spiders (excluding black widow) and American dog ticks.