Andrew from Seattle, Wa writes
Will Crabgrass disintegrate after it dies completely? I heard The Lawn Care Nut say or will it turn orange when dead and not disintegrate, so your left with orange sports in lawn until next season
After applying Quinclorac 75 DF Herbicide crabgrass will first discolor and then over a long period of time start to breakdown. You will have discolored spots for some time unless you choose to remove the dead crabgrass physically.
Answer last updated on: 04/26/2020