Spectracide Weed Stop Concentrate delivers powerful control of over 470 listed weeds, including crabgrass, clover, chickweed, dandelion, and yellow nutsedge. This ready-to-spray formula kills on contact down to the root with visible results in as little as 5 hours and becomes rainfast in 3 hours. Safe for lawns when used as directed, it's ideal for use in temperatures between 45-90?F.

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