Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The first report of leaf blight disease on Microstegium vimineum caused by Bipolaris maydis in China.

Abstract

In October 2014, invasive Microstegium vimineum plants with leaf blight disease were found near a roadside along Minling Road, Nanjing, Jiangsu Province, China. Diseased plants had necrotic, dark brown, elongated, irregular lesions 0.1 to 6 cm long and 0.1 to 1 cm wide. Lesion development along the leaf margin led to stalk wilt, spikelet necrosis and eventual death of most infected plants. Disease incidence was 80-90%. The causal pathogen was identified as Cochliobolus heterostrophus based on morphological, molecular and pathogenicity analyses. This is thought to be the first report of leaf blight disease on M. vimineum caused by C. heterostrophus in China.