Answer: Both bermuda and crabgrass are warm season annuals. They will die down when the weather gets cold. At that time you can dig the patches out. If it's above 40F you can overseed the bare areas with fescue. When the new grass is up and has been mowed 2 or 3 times it should be sturdy enough for you to apply a pre-emergent product to keep the seeds left from the crabgrass and bermuda from sprouting. Timing is everything with pre-emergent products so be sure to apply according to label directions.
Q&A Library Searching Tips