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Figure 2. The upper panel displays a Mandarin orange tree infected by citrus greening with its yellow mottled leaves, and Mandarin oranges produced on trees infected by citrus greening demonstrate the classic green and orange pattern as seen in the lower left panel. The lower right panel provides an example of the Asian citrus psyllid (Diaphorina citri), which vectors Candidatus Liberibacter asiaticus and Ca. L. africanus. Photographs are courtesy of Tim R. Gottwald, Steve M. Garnsey, and B. Aubert. BACK

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