Herbicides usually only kill the foliage on established nutsedge. Read all the instructions before using one of these. The product may require a surfactant to be effective. Using a marking dye with these products can prevent missing spots.

• SedgeHammer (halosulfuron-methyl)
• ProSedge (halosulfuron-methyl)
• Certainty Turf Herbicide (sulfosulfuron)

Links

• University of California