My yard is centipede, and as every summer here in Ga, it starts out with a drought. We have received less than a half inch of rain the past five weeks. It is the same every year. My centipede get brown and brittle, but after the rain patterns start again it gets healthy and lush. My wife waters it once or twice a week, but mainly to get her flower beds. We did get a substantial rain yesterday. This year is a little different. There are patches where it appears the grass has turned black. It is really evident in the mornings. Is this due to the lack of water, or some type of fungus? If it is the latter or another reason, how can I fix it. Thank you, from a first time poster.