A glass of orange juice in the morning is something many of us take for granted. But that might soon change thanks to a citrus disease affecting every major orange-growing region in the world.
The world's orange crop is being threatened by "citrus greening," a bacterial infection carried by a fly that feeds on citrus leaves.
Jack Payne, a senior vice-president of agriculture at the University of Florida, is leading the charge to find a cure in that state where citrus trees are being destroyed in large numbers.
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