I have a yard of about an acre. Over the years it had gotten taken over by weeds and crabgrass so last Sept I killed all of the vegetation with Roundup. By Oct the entire yard was brown and that is the way it has set during the winter. I am now trying to understand what to do next. I have dragged the yard with a drag-type harrow so I am down to about bare dirt in most areas. In a few areas the crabgrass roots are still attached to the ground. Here are the ideas I have as to what to do next. 1 - Sow tall fescue and control the crabgrass that comes up with a post-emergent. 2 - Put down a pre-emergent and during the next few months continue to treat the weeds and crabgrass that comes up with Roundup. In the fall I would sow tall fescue. 3 - Any other ideas you folks may have. I would like to have a green yard this summer but if it would be better to wait six months before sowing grass then that is what I will do. Thanks for any advice you may have!