Roundup Concentrate Poison Ivy Plus Tough Brush Killer combines two brush-killing ingredients to penetrate the waxy leaves and brush of hard-to-kill weeds. It also kills weeds like poison ivy, poison oak, and poison sumac. Mix 6 fl. oz. of the concentrate with 1 gallon of water. Kills weeds to the root in 24 hours.
This bottle makes 5 gallons of weed killer.