I had a new lawn put it on a flat 1 acre lot, not very successful. I got all crab grass, thick,fat blade and fast growing. and now it completely brown and dying. What should I do this spring? anything to do now or wait till march/april? roundup and reapply? reseed without killing crabgrass? any idea about ballpark cost to fix this problem, I paid 1300 for him to apply seed and straw, the straw was gone in less than 2 days and think it took all the grass seed as well. any help would be GREATLY appreciated.