Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of brown blight disease on Camellia sinensis caused by Colletotrichum acutatum in China.

Abstract

In October 2014, distinct leaf blight symptoms were observed on popular tea (Camellia sinensis) cultivars in commercial tea estates of Wansheng, Chongqing City, China. The initial symptoms were characterized by water-soaked lesions on young leaves, and the lesions developed and expanded to large, dark brown, necrotic lesions, that were covered with black acervuli. Eventually the dead leaves fell from the tea plant. Based on morphological characteristics, molecular data (sequence analysis of the rDNA internal transcribed spacer region and glyceraldehyde-3-phosphate dehydrogenase gene) and pathogenicity tests, the causal agent was identified as Colletotrichum acutatum. This is the first report of this pathogen on tea.