Doff WeedOut Xtra Tough Weedkiller is ideal for the control of annual and perennial weeds like grasses, docks, nettles, willow herb, and dandelion. It is a systemic weedkiller that effectively targets weeds by transporting the weedkiller down to the roots. This formulation is inactivated immediately upon contact with the soil and breaks down naturally, allowing treated areas to be replanted safely. Available as a ready-to-use (RTU) spray, it contains 7.2g/litre of glyphosate.