This Verdone Extra Liquid Concentrate is a selective weedkiller that provides economical control of large areas of lawn weeds without harming the grass. One treatment controls most common broad-leaved lawn weeds that invade lawns and 'suffocate' the grass, in one easy, annual application.Use on all established lawns and grassy areas in late spring or early summer. Weeds will wilt, turn brown and die within 4 - 6 weeks. Verdone Extra removes the competition and allows grass to thrive and spread.The special formulation effectively controls most common lawn weeds such as white clover, daisy, dandelion and plantain as well as more rarely occurring lesser trefoil (yellow suckling clover), black medick (a small leaved clover), common mouse-ear chickweed, yarrow, parsley-piert and the blue flowering speedwell.To use, simply dilute in water in your own pressure sprayer or watering can fitted with a very fine rose and apply over the whole lawn. Once thoroughly dried, children and pets can be allowed onto the treated area.