Two weeks ago I drove to a customers property and began to do the app. A few paces back and forth and I began to see little yellow prills near the walks and drive. I stopped doing the app and called the customer at work. This guy proudly told me that he had already put down a pre-m with fert. app and that he "just wanted to get better results than last year." While I service nearly 500 customers on a regular basis each year, I remembered this lawn distinctly. Started out the previous year with a good looking TTFescue lawn that I had seeded/aerated precisely and even coached the guy on his irrigation settings. Came out fantastic. I did the spring app. in late Feb. 2001 (with all the goodies) then round 2 in early April. Mid-May the turf started getting Rhizoctonia pretty bad so I put down fungy and quizzed the guy on his irrigation. He was watering almost every day for hours! By late summer the lawn was a disaster that I couldn't quite figure out (I'm no rookie) but something was squirrely. Now I know what happened. The customer was doing apps exactly 2 weeks after I had done each of my 6 apps. I estimate that with my 3.0lb of N/yr, he added another 4-5 lb of N! A lovely combination of 2 pre-emergents to prune the roots, excess N to push top growth and disease with the crowning turd of about 3" of irrigation/wk to make it nice and soggy. To make this brief, I canceled his service until he decides that what I do is exactly what his lawn needs and he puts only 3 things on his lawn...Proper amount of water...His lawn mower...and his feet. Have hundreds of stories of customer "self diagnosis and treatment" and just thought I would share this little jewel with you guys. Oh yeah, all these LCO's are irresponsible with pesticides right?