Vitax Feed & Weed 500ml Kills common lawn weeds and encourages grass regrowth Apply from April to September Contains clopyralid, 2,4-D and MCPA 500ml Treats 100m� A combined lawn feed and selective weedkiller for control of many common broad-leaved weeds in lawns, it kills clovers, buttercup, dandelion, daisy and plantains to leave a green and healthy lawn. Once applied, it quickly kills off any weeds and encourages grass growth to cover bare areas left by dead weeds. Vitax Feed and Weed should be applied when the soil is moist and weeds are actively growing and leafy.