Controls yellow and purple nutsedge in turfgrasses. Kills nutlet, top, and tuber. Highest rating of all nutgrass control agents. Use on cool and warm season turf. Each box contains 0.03 oz. of water dispersible granule in a premeasured water soluble bag for convenient application. Covers up to 1000 sq. ft. Won't stain concrete and will not harm or yellow turf. Active ingredient Halosulfuron. 0.03 oz.