I am a new home owner and I live in Concord, NC(close to Charlotte). I am having a lot of problems with my lawn and by that I mean I have patches and patches of grass all over my lawn. Lots od brown spots where nothing is growing. I think my yard is the worst looking in the neighborhood. During the early spring the lawn looked grat, but shortly after it started dying and then I noticed that the brown spots took over. Need help getting my lawn to be fully rid iof all thos brown patces and have nothing but grass on it. I have tall fescue. Also I see fertilizers out there but I am not sure what the concentration numbers on the fertilizers mean and when I should use what level of concentration. HELP PLEASE.