Take back your lawn from weeds with Ortho WeedClear Weed Killer for Lawns. This lawn weed control product kills all listed weeds without harming your lawn (when used as directed). It kills over 250 major broadleaf weeds down to the root, including dandelion, chickweed, clover, spurge, oxalis, and others as listed. The formula produces results in hours with just 1 application and is rainproof in 1 hour. Use this weed killer on listed lawn grasses, including St. Augustinegrass (not Floratam), Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss, and Bahiagrass, Kentucky Bluegrass, Ryegrass, Tall Fescue, and Fine Fescue. To use, connect the trigger sprayer to bottle, set to your desired spray pattern, and spray at the center of individual weeds to lightly cover weed leaves. For best results, apply to actively growing weeds in spring or fall when daytime temperatures are below 90F. This product is for spot treatment only; do not apply to the entire lawn. Do not allow people or pets to enter the treated area until sprays have dried. Use Ortho WeedClear Weed Killer for Lawns to kill weeds to the roots so they won't come back!