On the distribution and establishment of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) in Germany

Authors

  • Christine Dieckhoff Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.
  • Olaf Zimmermann Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.
  • Helmut Rauleder Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.
  • Björn Lutsch Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.
  • Gabriele Zgraja Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.
  • Sibylle Rumsey Landwirtschaftliches Technologiezentrum (LTZ) Augustenberg, Karlsruhe.

DOI:

https://doi.org/10.5073/JfK.2024.01.02

Keywords:

Trissolcus japonicus, Halyomorpha halys, brown marmorated stink bug, biological control, natural enemy, parasitoid

Abstract

The invasive brown marmorated stink bug, Halyomorpha halys, is an economically important pest of fruit and vegetable crops. It is also a nuisance pest overwintering in large numbers in man-made structures. In its native range, natural biological control plays a key role in regulating this pest. The egg parasitoid Trissolcus japonicus is a dominant natural enemy showing high parasitism rates on H. halys eggs. Adventive populations of T. japonicus have been reported from North America and several European countries with successful establishment within the new distribution areas of H. halys. The object of this study was to monitor H. halys egg masses to assess the distribution and establishment of T. japonicus. In Germany, T. japonicus was first reported in 2020 at three sites in Baden-Wuerttemberg. Since then, additional locations have been confirmed in Hesse, Rhineland-Palatinate, Bavaria, and North Rhine-Westphalia. Thus, T. japonicus has been able to successfully overwinter, reproduce, and spread within H. halys’ distribution range in Baden-Wuerttemberg. Here, the current status of presence and establishment of T. japonicus in Germany is reported.

Downloads

Published

2024-02-12

Issue

Vol. 76 No. 01 (2024)

Section

Original Article

License

Copyright (c) 2024 Christine Dieckhoff, Olaf Zimmermann, Helmut Rauleder, Björn Lutsch, Gabriele Zgraja, Sibylle Rumsey

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The content of the journal is licensed under the Creative Commons Attribution 4.0 License. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages).

The copyright of the published work remains with the authors. The authors grant the Journal of Cultivated Plants, the Julius Kühn-Institut and the OpenAgrar repository the non-exclusive right to distribute and exploit the work.