The herbicides stronger on grassy weeds include Celsius, Revolver, or Monument. I was not thinking about Manor because it is more a broadleaf herbicide. I do know that some cool season grasses/weeds are injured by it.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738