Dry rot of potatoes caused by Gliocladium roseum

Abstract

The pathogenicity of Gliocladium roseum, isolated in a previous study as the sole organism from potato tubers with typical Fusarium dry‐rot lesions, was investigated. Although usually considered to be a saprophyte, G. roseum was pathogenic to potato tubers (cv. Up‐to‐date) after artificial inoculation. It caused raised dry‐rot lesions from which it was consistently reisolated. This is the first report that dry rot of potato tubers is caused by G. roseum.