Weedol Lawn Weedkiller works selectively, killing broad leaved weeds growing in your lawn without harming the grass. The ready to use spray pack is ideal for quick spot treatment of weeds in lawns. Warning: Contains: 0.32 g/l fluroxypyr, 0.16 g/l clopyralid, and 1.6 g/l MCPA formulated as a micro-emulsion formulation (ME). Keep out of reach of children and always read instructions.