Huanglongbing (HLB; Citrus Greening) and Nutrient Deficiency Identification1

Tripti Vashisth, Megan M. Dewdney, and Jamie D. Burrow 2

Huanglongbing (HLB) is a bacterial disease that is spread by an insect, the Asian citrus psyllid. This fact sheet, which is best viewed as a PDF (https://edis.ifas.ufl.edu/pdffiles/PP/PP32800.pdf), explains how to tell the difference between HLB symptoms and symptoms from nutrient deficiencies.

Figure 1. 
Figure 1. 

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Figure 2. 

Footnotes

1. This document is PP328, one of a series of the Plant Pathology Department, UF/IFAS Extension. Original publication date June 2016. Revised July 2019. Visit the EDIS website at https://edis.ifas.ufl.edu.
2. Tripti Vashisth, assistant professor, Horticultural Sciences Department; Megan M Dewdney, associate professor, Plant Pathology Department; and Jamie D Burrow, Extension program manager; UF/IFAS Citrus Research and Education Center, Lake Alfred, FL 33850.