We have a problem with what I'm guessing is blight or some other sort of lawn disease? In the Spring or anytime we are getting adequate moisture the problem almost, but not completely, goes away. But when we get a dry spell this patch shows up. It's also the first to turn brown in the fall, like now. It's been there for years and is affecting the neighbors lawn also. I've tried de-thatching and raking up all the loose grass clippings, thinking the clippings might be chocking out the grass, but no difference. (this area of the lawn is also thicker than other areas) Sometimes the neighbors fertilize and we don't, sometimes we do and they don't. Doesn't seems to make a difference. Seems to be brown at the roots, green on top which is why our side looks worse now, as I just now mowed. Any ideas what this could be, and how to get rid of it? Thanks.