Spectracide Weed Stop For Lawns Plus Crabgrass Killer with the AccuShot continuous power sprayer controls more than 250 types of weeds as listed ? and it won't harm your lawn when used as directed. This ready-to-use formula kills on contact all the way down to the root, with visible results in 8 hours. It controls major broadleaf and troublesome grass weeds, including dandelion, chickweed and clover, as well as crabgrass, foxtail and yellow nutsedge (see product label for complete list). This product is rainfast within 3 hours, so it won't wash off. The AccuShot sprayer allows for continuous spraying and precise application. It features a comfortable, ergonomic grip and an extendable wand that makes it easier to Table Rock Table Rock True Value only the weeds you want to kill. In addition, it features a one-touch continuous spray that requires no repetitive squeezing, pumping or pulling. The AccuShot sprayer is reusable ? keep it for use with Spectracide Weed Stop For Lawns Plus Crabgrass Killer.