Ortho Home Defense Backyard Mosquito and Bug Killer allows users to protect their lawn and landscape from mosquitoes that may transmit diseases like Zika and West Nile, as well as ticks, fleas, and over 200 other insects. Just hook it up to your hose and spray following label directions. Treats up to 5,300sq ft. Active ingredients: Bifenthrin 0.3%, Zeta-Cypermethrin 0.075%. Other ingredients: 99.625%.