If lawn weeds are making it hard to keep your grass looking the way you want, use Ortho® Killex® Ready-To-Use lawn weed control. Makes it easy to spot treat weeds without harming your grass. Kills dandelion, Creeping Charlie, and clover – plus it controls over 50 varieties of lawn weeds. As weeds disappear, grass fills in. Ortho® Killex® lawn weed control is ready to use as soon as you notice an actively growing weed. To apply, adjust the spray nozzle, aim at the weed, and pull the trigger. Only a short burst is needed to wet leaves. Starts acting within days, with weeds continuing to die over time.