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Publication #HS1184

Packinghouse Citrus Black Spot ID/Identificación de la Mancha Negrade los Cítricos en las Plantas de Procesamiento1

Mark A. Ritenour, Megan M. Dewdney, Natalia A. Peres, and Jamie D. Burrow2

This one-page identification sheet is designed to assist packinghouse graders in the detection of citrus black spot.

Figure 1. 

Citrus black spot symptoms have many forms, such as hard spot, cracked spot, false melanose, and virulent spot. / La mancha negra de los cítricos presenta muchos tipos de síntomas tales como, manchas o puntos duros, manchas o puntos agrietados, manchas o puntos de falsa melanosis y manchas o puntos virulentos.

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This document is HS1184, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date August 2010. Revised January 2015 and May 2018. Visit the EDIS website at


Mark A. Ritenour, associate professor, Department of Horticultural Science, UF/IFAS Indian River Research and Education Center; Megan M. Dewdney, associate professor, Department of Plant Pathology, UF/IFAS Citrus REC; Natalia A. Peres, professor, Department of Plant Pathology, UF/IFAS Gulf Coast REC; and Jamie D. Burrow, Extension program manager, UF/IFAS CREC, UF/IFAS Extension; Gainesville, FL 32611.

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.