Effectively kills most lawn weeds including the problem weeds - such as black medick - lesser trefoil - white clover dandelions and daisiesPre-diluted - ready-to-use selective weedkiller spray that controls most broad-leaf weeds with 1 application without harming the grass. 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. Weedol Gun! Lawn Weedkiller removes the competition and allows grass to thrive and spread. This spray contains 3 different selective weedkillers to give easy control of most common lawn weeds including dandelions - daisies - white clover and plantains.There are a host of other plants with smaller leaves that are less easily controlled with ordinary lawn weedkiller treatments. That’s where Weedol Gun! Lawn Weedkiller scores because it gives good control of many problem weeds - such as lesser trefoil (yellow suckling clover) - black medick (a small-leaved clover) - common mouse-ear chickweed - yarrow - parsley-piert and the blue flowering speedwell.Use on leafy weeds that are actively growing between April and September. For best results do not mow for 3 days before or after application. Do not treat new lawns until they are established for at least 2 months.