Martin’s Nutgrass Eliminator .5oz is a selective post-emergent herbicide that targets weeds growing in lawns and other landscaped areas without harming desirable plants. Nutgrass Eliminator will control purple nutsedge and yellow nutsedge, as well as several other broadleaf weeds. Can be used in well-established commercial & residential turfgrass and around woody ornamentals in landscaped areas. It can be used on both cool-season & warm-season grasses. Ingredients: 5% Halosulfuron-methyl.