Oranges ripen in a grove in Plant City, Fla. Citrus greening, a disease spread by a tiny insect that ruins oranges and eventually kills the trees, has put the future of the state's $10 billion citrus industry in doubt. Chris O'Meara/AP hide caption

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Ripening fruit in a grove in Plant City, Fla., this month. Florida citrus growers are worried about citrus greening, which causes bacteria to grow on the leaf and fruit, eventually killing the tree. Chris O'Meara/AP hide caption

toggle caption Chris O'Meara/AP

Oranges ripen in a Plant City, Fla., grove on Wednesday. Growers in Florida, Texas and California are worried about citrus greening, a disease that makes the fruit bitter and unmarketable. Chris O'Meara/AP hide caption

toggle caption Chris O'Meara/AP

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