Roundup tree stump and root killer kills stumps, trees, brambles, nettles, deep-rooted and woody weeds. It\'ll even kill Japanese Knotweed. Its super concentrate formula kills up to 16 tree stumps and fully degrades in the soil to allow replanting. Kills the roots, so weed doesn\'t come back and leaves no harmful residue. Warning: Herbicide. Home garden weedkiller. Always read the label. Keep children and pets away from treated area until dry. Contains  360g/l glyphosate. Harmful to aquatic organisms. MAPP 13850.