You can kill weeds without harming your lawn (When used as directed) with Ortho® WeedClear™ Weed Killer for Lawns Ready-To-Spray. This weed killer kills over 250 common weeds, including dandelions, clover, poison ivy, chickweed and dollarweed (see product label for complete weed list). It is made especially for residential lawns and contains three proven ingredients to specifically target and destroy other common lawn weeds, without harming your grass (When used as directed). This herbicide works by entering weeds through their leaves and moves throughout the plant to kill all the way down to the root. You'll see visible results in hours and it becomes rainproof within one hour upon drying. To apply, connect your garden hose to the sprayer and set the nozzle to your desired setting. People and pets may enter the treated area after the spray has dried. For best results, use when weeds are small and actively growing in the spring or fall. One 32-oz. bottle treats up to 16,000 sq. ft.