Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Phytophthora cinnamomi causing root rot of southern highbush blueberry in California.

Abstract

In 2015, several southern highbush blueberry (Vaccinium corymbosum) cv. Ventura plants growing in a production field in Oxnard, California, USA, were stunted, chlorotic and had necrotic, blackened roots. Two representative samples were collected and sent to the laboratory for isolation. The causal pathogen was identified as Phytophthora cinnamomi based on cultural, morphological, genetic (BLAST and qPCR) and pathogenicity analyses. This is thought to be the first report of P. cinnamomi causing root rot of southern highbush blueberry In California, USA.