(AP) — In this photo taken July 8, 2011, a trap for the Asian citrus psyllid hangs on a tree in Centerville, Calif.
The Asian citrus psyllid, a tiny gnat size pest that can carry a disease deadly to citrus trees, has already crippled and wiped out groves in Latin America, India, the Middle East and in Florida. California, which ranks second in the nation after Florida in citrus production, is now the most important front in the fight against the psyllid, because the pest has been found here, but so far without the disease. (AP Photo/Gosia Wozniacka)
