This disease is so frustrating. I have one customer (mowing and app) that has a perennial problem with this disease. He lives in a newer subdev, sodded KBG over clay, and in a wooded area. Lawn is probably 4-5 years old. I started dealing with this issue last season. I aerated twice, put down an app of Heritage last fall (Oct) and then again late May this season (right after aerating). I plan to aerate again this Sept/Oct. The disease still cropped up pretty strong this July with the scorching temps and humidity. Frustrating to say the least, and my customer has e-mailed wondering what is going on. At least I have informed him that it is not an easy issue to deal with, and it may take a number of years. My question is, what else can I do? I have read some about the application of a straight Milorganite fert app, any comments on the efficacy of that proposition? Any other thoughts? Can this disease even be beaten back, or am I leading the customer on (unintentionally)?