Abstract
Management of melanose, caused by the fungus Diaporthe citri, is often necessary in mature groves where fruit is intended for the fresh market: particularly if recently killed twigs and wood are present because of freezes or other causes. Melanose management is not usually needed in groves less than 10 years old or those where fruit is intended for processing. Grapefruit is very susceptible to melanose, but all citrus may be damaged by the disease. This 3-page fact sheet is part of the 2018–2019 Florida Citrus Production Guide. Written by Megan M. Dewdney and published by the UF/IFAS Plant Pathology Department, May 2018.
PP-145/CG019: 2022–2023 Florida Citrus Production Guide: Melanose (ufl.edu)