<em>Cylindrocladiella parva</em> as a causal agent of dieback on <em>Euonymus fortunei</em>

Authors

  • Ulrike Brielmaier-Liebetanz Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Pflanzenschutz in Gartenbau und Forst, Braunschweig
  • Sabine Werres Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Pflanzenschutz in Gartenbau und Forst, Braunschweig
  • Stefan Wagner Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Pflanzenschutz in Gartenbau und Forst, Braunschweig
  • Thomas Brand Landwirtschaftskammer Niedersachsen – Pflanzenschutzamt, Oldenburg
  • Verena Döring Pflanzenschutzamt Berlin

Keywords:

Pathogenicity, morphology, sequence analysis, Cylindrocladium, ornamental shrub, symptoms

Abstract

In August 2011 a shoot dieback of unknown cause was observed on Euonymus fortunei. From the affected shoots a fungus similar to Cylindrocladium was isolated. According to its morphological characteristics this fungus could be identified as Cylindrocladiella parva (P.J. Anderson) Boesewinkel. The subsequent sequence analysis of the ITS regions as well as the β-tubulin-gene confirmed this result. Pathogenicity of this fungus was tested in several trials on E. fortunei 'Emerald’n Gold'. After inoculation of wounded nodes with the fungus and incubation with high humidity two year old plants developed disease symptoms within seven weeks. Cylindrocladiella parva could be reisolated from infected shoots. This is the first occurrence of Cylindrocladiella parva on E. fortunei in Germany according to our knowledge.

DOI: 10.5073/JfK.2014.01.01, https://doi.org/10.5073/JfK.2014.01.01

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Published

2014-01-01

Issue

Vol. 66 No. 1 (2014)

Section

Original Article

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