I was watching one of those home shows this past weekend and they focused on crabgrass. I live in CT and with the cold weather the roots of the crabgrass are nearly dead and very shallow. This home show said that one way to get rid of the crabgrass is to tear up the crabgrass and roots. I assume that I'd then plant new grass seeds. Has anyone every heard of this before? Is this a good idea? Thanks so much for your help.