Apply after all rice plants have a minimum of one well-developed tiller up to panicle initiation.
Earlier applications provide better control.
Watergrass and sprangletop should be actively growing. Applications to grasses under drought stress may result in reduced control. Apply before emergence of the sprangletop panicle. Rainfall within 1 hour of an application may reduce the grass control. Crop injury Postemergence applications may result in temporary rice injury that appears as leaf chlorosis and stunting.