Bonide Products 506 Poison Ivy and Oak Killer, 32-Ounce 32 oz., Ready to Use, Poison Ivy and Poison Oak Killer Kills poison ivy, and poison oak without harming lawns Fast, and effective formula, that kills difficult weeds Effects begin to show after only a few days, and weeds gradually die Contains Trimec(R), which is a three way herbicide for effective weed control to the roots