Use the Spectracide Weed Stop For Lawns Plus Crabgrass Killer Concentrate to kill over 470 types of weeds as listed, including crabgrass. The product produces visible results in 5 hours. This product kills broadleaf and troublesome grass weeds including dandelion, chickweed and clover as well as crabgrass, foxtail and yellow nutsedge, see product label for complete list of weed types. Apply when daytime temperatures are between 45 and 90 degrees Fahrenheit. Do not apply to Bermudagrass when daytime temperatures exceed 85 degrees Fahrenheit.

Product Features:

• Kills weeds, not the lawn: Controls listed weeds including crabgrass not the lawn (when used as directed)
• Kills crabgrass: Apply the first time you see crabgrass in your lawn
• Kills 470+ types of weeds: controls all types of listed broadleaf and grassy weeds, including crabgrass, dandelion, chickweed, clover and yellow nutsedge (see product label for complete list)
• Rainproof: Rainfall or watering 3 hours after application will not wash away effectiveness