First report of Diaporthe caryae causing stem blight of chilli pepper (Capsicum frutescens L.) in China

• DOI: 10.1111/jph.13239
• Publication Date: 2023-10-31T07:25:45Z
• Authors: Qi‐Han Zhu; Jian‐Peng He; Shu‐Yuan Cheng; Xin‐En Yuan; Bing Liu; Shui‐Lin Song; Jun‐Xi Jiang; Gui‐Hong Xiong
• Keywords: Canker; Fruit rot

Abstract Chilli pepper is one of the most important and widely cultivated types in China. It has high nutritional economic value. Capsicum frutescens L. chilli production. In October 2022, a new disease showing blight entire plant was observed Nanchang City, Jiangxi Province. The fungal isolates consistently obtained from diseased samples were identified as Diaporthe caryae C. M. Tian & Qin Yang based on morphological characteristics, pathogenicity test phylogenetic analysis four genes, including internal transcribed spacer region ( rDNA‐ITS ), translation elongation factor 1‐alpha gene TEF1 beta‐tubulin TUB2 calmodulin CAL ). Although other species have been reported pathogens peppers previously, to our knowledge, this first report D. causing stem world. be able infect various fruit trees such kiwifruit, peach, pear, pecan, resulting kiwifruit rot, peach constriction canker, pear shoot pecan dieback, respectively. host range expanded vegetable crops.