Anyone who needs to buy some grass selective herbicide, a place online called rural king sells a 2.5gal container of 26% clethodim which is double the concentration of whitetail institute’s arrest max and 20x the volume (pint vs 2.5 gal) for $109. You do pay shipping, but even so, you could potentially get 40x the coverage compared to arrest max for 2.5-3x cost of arrest max. Pretty good deal of you have some Acreage to kill Some grass.
From my research it seems clethodim is the best grass selective herbicide out there, although it takes a couple weeks for the full effect to be seen.
Just passing info.