I have bermuda. It is a 10 year old lawn. I have never had any problem with the lawn. This year, about 3 or 4 weeks ago it started turning brown. Not in patches-the entire front lawn. It was during very hot weather. I am watering less than last year, but still every other day. I thought maybe because I cut back on water, but then we got that 4 days straight of rain and the lawn did not green up a bit! I cut my lawn weekly, but not quite as short as most people do. I have changed NOTHING. No fertilizer since May. Help!