Spectracide Weed Stop For Lawns plus crabgrass killer is pre-mixed and ready to use for spot treatment of weeds and grasses. It controls more than 470 types of weeds as listed, including crabgrass and yellow nutsedge and it won't harm your lawn when used as directed. This formula kills by contact down to the root, with visible results in as little as 5 hours. It controls all types of listed broadleaf and grassy weeds, including crabgrass, dandelion, chickweed, clover and yellow nutsedge (see product label for complete list). Apply Spectracide Weed Stop For Lawns Plus Crabgrass Killer when temperatures are between 45 and 90 degrees Fahrenheit. Spray until wet to control weeds. Do not apply when daytime temperatures are above 90 degrees Fahrenheit because lawn injury can occur. Read the entire label before using. Active ingredients: Dimethylamine salt, Quinclorac, Dicamba, Sulfentrazone.
