The sprawling citrus orchard that Victor Story toured recently sure looked like a steal at $11,000 an acre. The investors who owned it were going to lose money, and potential buyers such as Story might have stood to reap a handsome reward. But as he bumped along the 40 acres of groves in a large SUV, Story was taken aback by the sickly look of the trees. Their leaves were an inch shorter than normal and yellowing. Full-size oranges were still apple green. Other mature oranges that should have been the size of baseballs were no bigger than ping-pong balls....