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<p>The brown marmorated stink bug, <i>Halyomorpha halys</i>, was accidentally introduced into Europe in 2004 and has caused severe economic damage in southern European fruit, wine, and vegetable production in recent years. The first European record of its principal antagonist, the egg parasitoid wasp <i>Trissolcus japonicus</i>, was made in Switzerland in 2017. In southern Germany, <i>H.&#xa0;halys </i>was first observed in 2011, and its northward spread has been followed by <i>T.&#xa0;japonicus</i> at a&#xa0;time lag of about 5–8&#xa0;years. Since its first record in the Lower Elbe region in September 2022, <i>H.&#xa0;halys </i>has been spreading from the outskirts of the city of Hamburg into the eastern part of the Altes Land fruit production area. Three sporadic records of <i>H.&#xa0;halys</i> in apple orchards in autumn 2024 were not associated with recognizable fruit damage. Meanwhile, in August 2024 <i>T.&#xa0;japonicus</i> was detected for the first time in the city of Berlin. These observations have implications for current discussions about the controlled release of <i>T.&#xa0;japonicus</i> in Germany.</p>

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Halyomorpha halys Arrives in the Lower Elbe Region While Its Egg Parasitoid, Trissolcus japonicus, Reaches Berlin

  • 期刊论文

  • 发表日期：

    2025年2月11日

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  • Roland W. S. Weber,
  • Olaf Zimmermann

摘要

The brown marmorated stink bug, Halyomorpha halys, was accidentally introduced into Europe in 2004 and has caused severe economic damage in southern European fruit, wine, and vegetable production in recent years. The first European record of its principal antagonist, the egg parasitoid wasp Trissolcus japonicus, was made in Switzerland in 2017. In southern Germany, H. halys was first observed in 2011, and its northward spread has been followed by T. japonicus at a time lag of about 5–8 years. Since its first record in the Lower Elbe region in September 2022, H. halys has been spreading from the outskirts of the city of Hamburg into the eastern part of the Altes Land fruit production area. Three sporadic records of H. halys in apple orchards in autumn 2024 were not associated with recognizable fruit damage. Meanwhile, in August 2024 T. japonicus was detected for the first time in the city of Berlin. These observations have implications for current discussions about the controlled release of T. japonicus in Germany.