University of Florida citrus researcher Reza Ehsani holds a miniature unmanned helicopter fitted with a camera to monitor crops from the air.

In this photo taken June 9, 2011 in Lake Alfred, Fla., University of Florida citrus researcher Reza Ehsani holds a remote control helicopter. The device is fitted with a camera and is used to monitor crops from the air. (AP Photo/Tamara Lush)