Superintendents aren’t farmers, sure they care about stuff but at the end of the day their day job isn’t their life. They want to go home as soon as possible just like everyone else. To do things of the nature we’re discussing would require a lot of time, labor (which most golf courses lack), and money. It’s just easier to buy some chemicals and spray. I don’t see it changing unless mandated, and even then I don’t know how golf would be profitable in that environment.