Joseph from Orlando, Fl writes
Unfortunately, the Reward Landscape and Aquatic Herbicide is not labeled to treat torpedo grass in St. Augustine lawn. St. Augustine is very sensitive turf species and Torpedo Grass is very hard to treat. We are not aware of a product that will treat Torpedo and not harm St. Augustine though. You may want to consider spot treating with RoundUp and reseed/resod.
Answer last updated on: 08/03/2018