First report of Diaporthe pseudomangiferae causing inflorescence rot, rachis, canker, and flower abortion of mango.
Serrato-Diaz L. M., Rivera-Vargas L. I., French-Monar R. D.
Author Affiliation: Department of Plant Pathology and Microbiology, Texas A&M AgriLife Extension Service, Amarillo, Texas, USA.
Plant Disease 98 : 1004-1005
Abstract : During a disease survey conducted from 2008 to 2010, 50% of mango inflorescences were affected with inflorescence rot, rachis canker and flower abortion characterized by blackening of plant tissue with soft rot lesions and sunken lesions on the rachis, respectively. Symptoms were observed at the Mango Germplasm Collection of the University of Puerto Rico's Experiment Station in Juana Diaz, Puerto Rico. The causal pathogen was isolated and identified as Diaporthe pseudomangiferae based on cultural, morphological, genetic (ITS) and pathogenicity analyses. This is thought to be the first report of D. pseudomangiferae causing inflorescence rot, rachis canker and flower abortion in mango.