Hop over to Amazon and get a deal this FAB rated Roundup Poison Ivy Plus Tough Brush Killer₂ Concentrate (32 fl. oz.). It features a powerful formula designed to eliminate poison ivy, poison oak, poison sumac, wild blackberry, kudzu, and other tough weeds at the root. It becomes rainproof in as fast as 30 minutes and … Continue reading Roundup Poison Ivy Plus Tough Brush Killer Concentrate as low as $14.93 Shipped Free (Reg. $35) – 4.6/5⭐