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CITRUS CANKER & GREENING (HLB) Handling Protocols for Master Gardener Plant Clinics1

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

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"Citrus Canker and Greening Handling Protocols for Master Gardener Plant Clinics" is a brochure providing information on the identification and treatment of citrus canker and greening diseases. The brochure includes photographs and descriptions to aid in the diagnosis of these diseases, how to handle plant samples that may be brought to a county Extension office plant clinic, and what information to provide homeowners whose trees may be affected by these diseases.

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Figure 1. 

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Figure 2. 


1. This document is HS1117, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date September 2007. Revised April 2010, January 2014, and June 2018.Visit the EDIS website at
2. Megan M. Dewdney, associate professor, Plant Pathology Department; Jamie D. Burrow, Extension program manager; Tripti Vashisth, assistant professor, Horticultural Sciences Department; and Lauren Diepenbrock, assistant professor, Department of Entomology and Nematology, UF/IFAS Citrus Research and Education Center; Lake Alfred, FL 33850.

Publication #HS1117

Date: 5/31/2018

    Fact Sheet


    • Jamie Burrow
    • Lauren Diepenbrock