Stem and root rot of Telosma cordata caused by Phytophthora palmivora in Vietnam – a newly recognised disease

Abstract

Severe losses ofplants in crops ofTelosma cordata occurred in NamDan District, Nghe An Province, Vietnam, following prolonged wet weather in September 2007. Phytophthora palmivora was isolated consistently from the margin of diseased and healthy tissue in underground stems. Koch’s Postulates were fulfilled. This is the first report of this disease.