Tiny bug threatens California citrus industry

The Asian citrus psyllid is seen in this University of Florida photo provided by the University of California, Davis. California and Arizona growers are bracing for a fight they say is potentially more damaging than the Mediterranean fruit fly because entire groves, not just fruit, are at risk. Psyllids feed on the liquid inside citrus leaves and are the only transmitter of a deadly disease officially known by its Chinese name huanglongbing, or "yellow dragon disease" for its visual effect on leaves. In the U.S. growers call it "citrus greening" because fruit fails to ripen. (AP Photo/University of Florida, Michael Rogers)