Spectracide Weed Stop For Lawns, Ready-to-Use, 32-ounce KILLS WEEDS, NOT THE LAWN: Wont harm lawns when used as directed  kills more than 200 types of weeds as listed. CONTROLS MAJOR BROADLEAF WEEDS: Controls dandelion, chickweed and clover, and also kills poison ivy, poison oak, blackberry and kudzu (see product label for complete list). KILLS THE ROOT: See results in hours. RAINPROOF: Rainfall or watering 6 hours after application will not wash away effectiveness. READY TO USE: No mixing required.