After much research, an agronomist, entomologist, I finally think I have figured out what has been the culprit in my turf for 3 straight years. To make a long story short, there is a fungal problem (leaf spot melting out) Occurs in the same spots year after year. Question: I know Heritage and Compass have shown good control, but do I treat now as a curative? Or just rake out in Fall and reseed with good disease resistant cultivars via NTEP. Then use Heritage or the like in Spring (2 week intervals) as a preventative. I do know fungicides are $$$$$, but I also know I should alternate back and forth between a couple so that the fungus doesn't build up immunity. Would using a high-priced like Heritage/Compass and a low priced like Spectracide work?? In addition, I am going to resist the temptation to dump N on the turf in spring and put the bulk of my fert down this fall. I think this cultural practice, coupled with a preventative fungicide should work. Ideas??