Bacterial Blight of Vicia Sativa: Aetiology of the Disease and Identification of the Pathogen

Abstract

A serious new disease of vetch in the north coast area of New South Wales was shown to be caused by Pseudomonas stizolobii (Wolf) Stapp. The pathogen, recorded in Australia for tho first time, was able to infect eight other species of legumes in glasshouse tests. Field diseases of Trifolium repens and Mucuna sp. caused by this organism were also recorded and isolates obtained from these sources were found to be pathogenic to vetch.