Sedgehammer+ is a selective herbicide for the control of nutsedge and other weeds in turfgrass, landscaped areas and other specified non-crop areas. Labeled Uses: Cool and warm season turfgrasses; Established woody ornamentals; Fallow areas.Yellowing and browning of leaves usually occurs within 10-14 days. One 13.5 gram packet in one gallon of water treats 1,000 sq ft. Active Ingredients: Halosulfuron-methyl...5.0% EPA Reg.