Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Ceratocystis fimbriata causing postharvest fruit rot of cucumber in China.

Abstract

During June and July of 2016, a fruit rot disease was observed on cucumbers (Cucumis sativus) in two farmers markets of Kunming City, Yunnan Province, China. Symptoms on cucumber initially appeared as yellow, brown, and irregular necrotic spots in the center or lower part of the fruit epidermis. The lesions then enlarged gradually and developed into grayish-brown, necrotic tissue on the pulp. Eventually, the diseased fruits were hollow, rotten, and deformed. The causal pathogen was isolated and identified as Ceratocystis fimbriata based on morphological characteristics, molecular data (sequence analysis of the ITS ribosomal DNA) and pathogenicity tests. This is thought to be the first report C. fimbriata on cucumber in China.