Originally Posted by Turf Dawg
The Crabgrass will die with a good frost. You are also going to have and get them cleaned before a pre emergent is going to do you any good.
A benefit we don't aways have here in South Florida. Crab Grass will survive from season to season. Of course it puts out Millions of seeds each year that help keep it going. The Tree Huggers got all our good stuff for weeds in St A.