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Publication #PP263

Citrus Greening (Huanglongbing; HLB) Blight and Tristeza Comparison Identification Sheet1

M. M. Dewdney, J. D. Burrow, L. M. Diepenbrock, and R. H. Brlansky2

This document is a two-page illustrated identification sheet for Citrus Greening that includes a comparison chart for Citrus Greening, Blight and Tristeza. The document can be downloaded by clicking the PDF icon in the top left corner.



This document is PP263, one of a series of the Plant Pathology Department, UF/IFAS Extension. Original publication date April 2009. Revised July 2013, April 2016, and April 2020. Visit the EDIS website at for the currently supported version of this publication.


M. M. Dewdney, associate professor, Department of Plant Pathology; J. D. Burrow, Extension program manager; L. M. Diepenbrock, assistant professor, Department of Entomology and Nematology; R. H. Brlansky, professor emeritus, Department of Plant Pathology; Original author: T. M. Spann, former associate professor, Department of Horticulture; UF/IFAS Citrus Research and Education Center, Lake Alfred FL.

The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.