Gordon's Sedge Stop Nutsedge Weed Killer 2 lb. Granules. This selective post-emergent herbicide effectively controls sedges, nutgrass, and kyllingas commonly found in turf grasses. Suitable for both warm-season and cool-season grasses, it can be applied to wet or dry turf. The easy-to-use granular formulation comes in a handy shaker can for convenient application.