Diversity and distribution of Diplodia spp. – causative agent of black canker on pome fruit trees – in Germany

Authors

  • Julia Zugschwerdt Landwirtschaftliches Technologiezentrum Augustenberg (LTZ), Karlsruhe.
  • Kamilla Zegermacher Landwirtschaftliches Technologiezentrum Augustenberg (LTZ), Karlsruhe.
  • Gabriele Zgraja Landwirtschaftliches Technologiezentrum Augustenberg (LTZ), Karlsruhe.
  • Gritta Schrader Julius Kühn-Institut (JKI) – Bundesforschungsinstitut für Kulturpflanzen, Institut für nationale und internationale Angelegenheiten der Pflanzengesundheit, Braunschweig. https://orcid.org/0000-0002-6713-2329
  • Clovis Douanla-Meli Julius Kühn-Institut (JKI) – Bundesforschungsinstitut für Kulturpflanzen, Institut für nationale und internationale Angelegenheiten der Pflanzengesundheit, Braunschweig. https://orcid.org/0000-0001-7182-5905
  • Jan Hinrichs-Berger Landwirtschaftliches Technologiezentrum Augustenberg (LTZ), Karlsruhe.

DOI:

https://doi.org/10.5073/JfK.2023.07-08.03

Keywords:

black canker, pome fruit trees, apple, Malus, Diplodia

Abstract

Black canker, caused by fungi of the genus Diplodia, poses an increasing threat to pome fruit production in Germany. In order to determine the spread of the disease in Germany, 423 bark samples with suspicious symptoms from all federal states were examined in a non-representative monitoring. In 62% of the samples examined, fungi of the genus Diplodia were isolated, with the species D. bulgarica dominating the Diplodia species spectrum with 56.6%, followed by D. seriata with 28.3%. D. malorum (7.8%), D. mutila (4.9%), D. juglandis (1.6%) and D. intermedia (0.8%), on the other hand, took up only a small part of the Diplodia species spectrum, with the latter two species being first records on apple in Germany.

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Published

2023-08-07

Issue

Vol. 75 No. 07-08 (2023)

Section

Short Communication

License

Copyright (c) 2023 Julia Zugschwerdt, Kamilla Zegermacher, Gabriele Zgraja, Gritta Schrader, Clovis Douanla-Meli, Jan Hinrichs-Berger

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