Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Outbreak of anthracnose on apricots caused by Colletotrichum fioriniae in Slovenia.

Abstract

In 2012 and 2013, apricots (Prunus armeniaca) showing circular, brown and slightly sunken necrotic lesions on the fruit surface were observed in commercial orchards near Nova Gorica (western Slovenia). When placed in humid conditions, conidiomata with orange conidia masses developed on the lesions. Symptoms were most conspicuous on mature fruits at harvest time. The disease affected up to 10% of the fruits and was most severe in locations with high humidity. The causal pathogen was identified as Colletotrichum fioriniae based on morphological, genetic and pathogenicity analyses. This is thought to be the first report of the occurrence of C. floriniae on apricots.