Citrus Greening: Impacts and Solutions

Citrus greening, also known as Huanglongbing, is a devastating bacterial disease affecting U.S. citrus production. Already prevalent in large parts of Asia and Africa¹, the disease first arrived in Florida in 2005.²

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The vector for the disease is the Asian citrus psyllid, which spreads the disease as it feeds on the leaves and stems of citrus trees, eventually rendering their fruit unsuitable for consumption and then killing the tree. Because symptoms of the disease don’t appear for two or more years, the disease often spreads undetected.³





1. “Citrus Greening (Huanglongbing),” University of Florida IFAS Extension, 2018, crec.ifas.ufl.edu/extension/greening.
2. Singerman, Ariel, and Pilar Useche. “Impact of Citrus Greening on Citrus Operations in Florida,” University of Florida IFAS Extension, 2018, edis.ifas.ufl.edu/fe983.
3. “Asian Citrus Psyllid and Huanglongbing Disease,” University of California Statewide IPM Program, 2018, ipm.ucanr.edu/PMG/PESTNOTES/pn74155.html.