Not an owner - just the bloke on the field every day.

Now most of it is a golf course and Condos. Which is more environmentally friendly?

And yes, I'll give you Temek - for now. The VOC from Guava or some beneficial will most likely replace part of that. It's all cyclical. Get a handle on one thing, and another pops up: Melanose, scab, fruit fly, diaprepes, canker, greening.

Only disease I haven't figured out how to manage was condo development. Kills the trees with no hope of replanting.

I would be interested in your opinion of alternatives, as I plan to be a landowner at some point in the not-too-distant future.

I just don't see wind as the most cost-effective in FL. The last week notwithstanding, winds are usually light (very light in the interior portions). Solar? Maybe, but plants are the ultimate solar collector, pull CO2 out of the atmosphere, and you can use them for food/energy if need be.