I just moved into this rental house with a yard with 98% crabgrass. I am trying to find a inexpensive way to battle it. I am in northern mississippi. I just overseeded with slit seeder and core aerated it, and. I was wondering if I should put some weed a feed on it now. Or should I wait and put preemergence on it during feb. There is not much real grass out there now. I just overseeded with bermuda the other day to try and get a few strands of real grass out there. Its a small yard so it dont cost much to seed. And I have siltseeders and core aerators I can use. I work for spraygreens. Any Suggestions??????