Plant Science

Protecting orange groves

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Science  09 Aug 2019:
Vol. 365, Issue 6453, pp. 555
DOI: 10.1126/science.365.6453.555-a

Citrus greening disease is afflicting harvests and killing trees worldwide.

PHOTO: JOE RAEDLE/GETTY IMAGES

Orange trees around the globe are succumbing to devastating disease. In groves worldwide, from China to Brazil, a psyllid bug transmits a motile bacterium that causes citrus greening disease. Infected trees produce bitter fruit and die prematurely. Taylor et al. have analyzed environmental variables that correlate with the presence of citrus greening disease. It seems that the disease is favored at average temperatures of 25°C. Mapping of citrus-compatible growing regions globally with temperature patterns predicts where future citrus groves might be more resistant to citrus greening disease and which existing citrus groves might be most defensible.

J. Appl. Ecol. 56, 2057 (2019).

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