George from Winter Haven Fl. writes
WHAT IS SAFE TO KILL CRAB GRASS THAT IS FULLY GROWN ON MY ST AUGUSTINE GRASS II LIVE IN FL?
Crabgrass Control Plus 0 - 0 - 7 with 0.37% Prodiamine Herbicide contains pre emergent and will not kill actively growing crabgrass. Blindside Herbicide WDG is labeled for crabgrass, as well as many other weeds, and is safe to be used on St. Augustine.
Answer last updated on: 08/07/2022