This disease is common in hot, humid weather of August where turf is suffering from overplay and compaction at the end of summer. In many areas, roots are weak and poorly development.
Core aeration is recommended regularly in spring and fall to help prevent the problem.
Luckily, the disease is primarily foliar at this time, so fungicide applications will help in recovery. A DMI fungicide plus chlorothalonil are recommended. Avoid dragging the sticky spores by mowers and other equipment from diseased areas to unaffected areas. Dollar spot is also rampant. This disease should respond well to a variety of fungicides in the absence of resistance problems.