Don't let nutsedge take control of your lawn. Ortho Nutsedge Killer for Lawns1 controls over 50 tough weeds, including purple and yellow nutsedge (nutgrass), kyllinga, wild violet, dollarweed, dandelion, purslane, spurge and other listed sedges and broadleaf weeds. This ready-to-spray formula kills pesky weeds, not your lawn and may be used on both well established cool-season grasses and warm-season grasses.