Kill weeds without harming your lawn with Ortho® WeedClear™ Weed Killer for Lawns Concentrate. Containing three proven ingredients, this herbicide targets and destroys over 250 common weeds, including dandelions, clover, and poison ivy, by entering the weed through its leaves and killing down to the root. Visible results appear within hours and rainproof within one hour of drying. Easily apply with a Dial N Spray® or tank sprayer to treat up to 16,000 sq. ft.