Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Ilyonectria robusta associated with black foot disease of grapevine in southern Brazil.

Abstract

In August 2012, symptoms of black foot disease were observed on 21-year-old grapes (Vitis labrusca cv. BordĂ´) in Rio Grande do Sul, Brazil. Symptomatic plants showed reduced vigour, vascular lesions, decline and death of vines and necrotic lesions on roots. The causal pathogen was isolated and identified as Ilyonectria robusta based on cultural, morphological, genetic and pathogenicity analyses. This is thought to be the first report in southern Brazil of I. robusta associated with black foot disease of grapes.