Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Phytophthora cactorum causing fruit rot of Maclura pomifera in Bulgaria.

Abstract

In October 2018, partially or entirely rotted fruits covered with white mycelia were observed under the canopy of a half-century Osage orange tree (Maclura pomifera) near Plovdiv, Bulgaria. The causal pathogen was isolated and identified as Phytophthora cactorum based on morphological characteristics, molecular data (sequences of ITS ribosomal DNA regions and a fragment of β-tubulin gene) and pathogenicity test. This is thought to be the first report of P. cactorum causing fruit rot of Osage orange in Bulgaria.