Invasive Species Compendium

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Abstract

First report of leaf anthracnose caused by Colletotrichum karstii on tea-oil trees (Camellia oleifera) in China.

Abstract

In August 2016, infected leaves of Camellia oleifera with symptoms of anthracnose were obtained from tea-oil tree plantations in Changsha city of China. Symptoms consisted of round or irregularly shaped lesions that initially appeared as red-brown spots and often coalesced into larger, dark-brown lesions in the leaf margin or tip. The centres of the lesions were grey-white with purple-brown borders, surrounded by a yellowish green halo where black dots would appear later. The causal pathogen was isolated and identified as Colletotrichum karstii based on morphological, molecular and pathogenicity analyses. This is thought to be the first report of anthracnose of tea-oil trees caused by Colletotrichum karstii in China.