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Publication #PP304

Citrus Canker Symptoms on Nursery Trees1

Timothy D. Riley, Megan M. Dewdney, and Jamie D. Burrow2

This document is a two-page illustrated identification sheet for citrus canker symptoms that appear in citrus nurseries. The document can be downloaded from or by clicking the PDF icon in the top left corner.



This document is PP304, one of a series of the Plant Pathology Department, UF/IFAS Extension. Original publication date February 2013. Revised August 2018. Visit the EDIS website at


Timothy D. Riley, plant pathologist, Citrus Health Response Program, USDA APHIS PPQ; Megan M. Dewdney, assistant professor, Department of Plant Pathology, Citrus Research and Education Center; and Jamie D. Burrow, Extension program manager, Citrus REC; UF/IFAS Extension, Gainesville, FL 32611.

The Citrus Health Response Program is a collaborative effort involving growers, federal and state regulatory personnel, and researchers. Its goal is to sustain the U.S. citrus industry, maintain growers’ continued access to export markets, and safeguard citrus-growing states against a variety of citrus diseases and pests.

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.