AI: 75.0% halofulfuron-methyl. SedgeHammer herbicide knocks out nutsedge without injury to turfgrass, established ornamentals, shrubs, and/or trees. SedgeHammer provides post-emergence control of both purple and yellow nutsedge. SedgeHammer also controls many broadleaf weeds and suppresses kyllinga. A low use rate and a relatively short half life mean safety to the environment.