2018–2019 Florida Citrus Production Guide: Alternaria Brown Spot: PP-147/CG021, rev. 5/2018

Abstract

Alternaria brown spot, caused by the fungus Alternaria alternata, affects Minneola tangelos, Dancy tangerines, Murcotts, and less frequently Orlando tangelos, Novas, Lees, and Sunburst. In rare cases, it may also infect grapefruit. Where severe, the disease results in extensive fruit drop and must be controlled on processing and fresh market fruit. This 3-page fact sheet is part of the 2018–2019 Florida Citrus Production Guide. Written by Megan M. Dewdney and published by the Plant Pathology Department, May 2018.

PP-147/CG021: 2022–2023 Florida Citrus Production Guide: Alternaria Brown Spot (ufl.edu)