Whatever insect you're fighting, Black Flag products are dedicated to providing the tools you need to regain control. Black Flag products don't mess around. Our indoor/outdoor pest arsenal has been arming homeowners in the battles against invading bugs for more years than any other brand. With quick, decisive formulas that act fast and never back down, Black Flag insect control gets the job done and take no prisoners. Black Flag Wasp, Hornet and Yellow Jacket Killer is designed to kill wasps, hornets and yellow jackets and eliminate the nests where they live and breed. It has up to a 29 ft. spray to reach the nests.