(Manna Pro) Ready-to-Use insecticide wipe/spray-on for horses dogs and ponies. Kills and Repels Mosquitoes to help protect against West Nile Virus. Powerful formula contains .25% Permethrin to protect against Horse Flies Stable Flies Face Flies Deer Flies Horn Flies Mosquitoes and Gnats. Longest residual action formula to control pests for up to 4 weeks! Choose from 32 ounce (Quart.) size with sprayer or 128 ounce (gallon) with sprayer.