I have some areas that look like this pic. I just sodded this grass about 3.5 weeks ago. I haven't added anything to it yet but I'm thinking about using a fungicide. I live in the Atlanta, GA area and it's getting kinda hot here. I'm trying to keep it alive until the fall. So far it looks good except for a few patches that have died. I'm trying to avoid more patches from becoming diseased and dying. Any suggestions. And yes, I have been watering early in the morning.