Preen One Lawncare Weed Killer is all you need for weed control in lawns in one easy application. Broadleaf weed killer prevents crabgrass, plus feeds your lawn in one time-saving step. Preen One Lawncare will kill over 250 lawn weeds commonly found in home lawns including dandelion, chickweed, thistle and clover, and will prevent crabgrass and other undesirable annual grasses from emerging. Preen One Lawncare also contains a long-lasting, slow release fertilizer that has essential nutrients your lawn needs for 2 months. Apply this weed killer for lawns in spring when weeds are growing, and that's it. You'll get season-long weed control and feeding without the extra work of multiple applications. Eliminate lawn weeds and green your lawn at the same time. for use on established bahiagrass, bermudagrass, buffalograss, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescue and zoysiagrass.