On Mon, 18 Sep 2006 19:28:10 -0400, Keith Corwell wrote:
Hi all I am thinking about doing some overseeding this fall.

I live in mid Maryland. My question is can I use a preemergence next
spring to fight crab grass

Overseed now; fertilize properly now and next spring, and don't scalp
the grass when you mow. Then you won't need pre-emergent crabgrass herbicide.