Jack Jones (who asked that his real name not be used) takes care of a small organic pear orchard for a farmer south of the San Francisco Bay Area. This spring, as the trees have begun to blossom, he’s been spraying them with a small amount of the antibiotic tetracycline to prevent a disease called fire blight.
Last year, when the perfect storm of warm, wet air first brought the bacteria to the farm, he tried removing infected branches and getting rid of cover crops, which were providing nitrogen that fed the disease. But to no avail—the disease had established itself in the trunks.
“It just devastated the orchard. We lost 80 percent of our trees in one season,” he recalls. Read more
