Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of anthracnose disease caused by Colletotrichum fioriniae on blueberry in western Poland.

Abstract

In 2014, dark brown and irregularly shaped spots were observed on blueberry (Vaccinium corymbosum) shoots and leaves in Poland. The symptoms were characteristic of anthracnose. To identify the cause of the disease, 5 mm sections of infected shoots and leaves were rinsed with distilled water, surface sterilized with 70% ethanol and 1% sodium hypochlorite, and plated onto potato dextrose agar. Plates were incubated at 23 to 24°C for 10 days with cycles of 12 h light/12 h darkness. In total, 43 identical isolates were obtained, including 12 from shoots and 31 from leaves. Based on morphological characteristics, DNA sequencing and pathogenicity, the causal agent was identified as Colletotrichum fioriniae. This fungus causes a disease, commonly described as anthracnose, in many plants worldwide and some members of this species have also been reported to be entomopathogenic. This is thought to be the first report of C. fioriniae species in blueberry cultivation areas in Poland.