Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of alternaria black spot caused by Alternaria alternata on Brassica carinata in South Dakota.

Abstract

During July 2016, Brassica carinata planted in experimental plots near Brookings, South Dakota, USA, were observed with black spots (∼2 mm diameter) on the leaves and stems (average disease incidence ∼40%). The causal pathogen was identified as Alternaria alternata based on morphological, molecular and pathogenicity analyses. This is thought to be the first report of A. alternata causing Alternaria black spot of B. carinata in South Dakota, USA.