Garry from Lumberton, N.c_ writes,
My zeon zoysia lawn (sodded last summer) is being taken over by water grass
Certainty is a selective herbicide that kills many grassy weeds which water grass is a generic term for, in warm season grasses like zoysia. It will kill the grassy weeds and not the zoysia grass.
Answer last updated on: 04/23/2012