See Inside No More OJ? An Invasive Insect Threatens the Citrus Industry

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On the Lookout: Asian citrus psyllids sit at a 45-degree angle (1). Psyllid nymphs excrete honeydew (2). A salivary toxin that even healthy psyllids emit can deform leaves (3). Trees at a field-test site grow inside protective psyllid-proof screens (4).

Grant Delin


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