Kill weeds down to the root without harming your lawn. Ortho WeedClear™ lawn weed killer ready-to-use refill controls and suppresses over 200 types of weeds, including all major broadleaf weeds like dandelion, chickweed, clover and crabgrass, yet won't damage your grass (when used as directed). The fast-acting formula is rainproof in 1 hr and delivers visible results after just one application. Specially formulated with three proven weed killers that when sprayed on the leaves, work through the plant to kill and control all the way down to the root. To use, install the Trigger Sprayer or the battery-powered Comfort Wand from your previous bottle, to easily reach and spot-treat weeds with a continuous stream no bending or pumping required. Better to apply when weeds are young and actively growing. Recommended for use on multiple lawn varieties including Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass and Zoysiagrass. People and pets may re-enter once treated area has dried.