Kills weeds & roots Broad range of weeds Systemic weedkiller for the control of annual and deep-rooted perennial weeds, including grasses, docks, nettles, willow herb, dandelion and many more For use on and around paths, patios, driveways and other hard surfaces in your garden Contains 90 g/l glyphosate in a soluble solution 5x80ml Sachets – each soluble in 800ml of water to treat over 30m² Doff® Weedout Extra Tough Weedkiller Concentrate MAPP 18335 contains 90g/l glyphosate in a soluble concentrate. A systemic herbicide that kills the foliage and plant roots of unwanted vegetation. Weed control is initially seen as a yellowing of the leaves which die-back after a few days or can take up to 4 weeks after application.