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Asian Hornet Infestation Spreads in Germany

The Asian hornet population is rapidly expanding in southwestern Germany, straining resources and expertise for nest removal. Experts warn of the species' threat to native insects and the challenges in controlling its spread.

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German

Germany

Germany EnvironmentInvasive SpeciesPest ControlHornets

Baden-Württemberg Ministry Of The EnvironmentLandesanstalt Für Bienenkunde (Lab)University Of HohenheimNaturschutzbund (Nabu)

What is the main challenge in controlling the spread of Asian hornets?: The Baden-Württemberg Ministry of the Environment reports a shortage of trained personnel with protective equipment to remove the nests. The removal of nests is challenging and time-consuming due to the hornets' aggressive defense of their nests.
How can one differentiate between the Asian hornet and the native European hornet?: The Asian hornet (Vespa velutina) can be distinguished from the native European hornet (Vespa crabo) by its darker body and yellow leg ends. The native hornet has dark feet and a yellow-black banded abdomen; it is also protected.
What environmental factor is currently impacting efforts to control the Asian hornet population?: The current weather conditions are favorable for the Asian hornet's activity, prolonging their breeding season and hindering efforts to control their spread. The timing for ending control efforts is uncertain due to weather and hornet inactivity.
How has the population of Asian hornets changed in Baden-Württemberg this year compared to last year?: The Asian hornet population in Baden-Württemberg, Germany, has doubled compared to last year, with over 1000 nests expected to be reported in 2024. This rapid spread is causing concern among experts due to the hornet's impact on honeybees and other insects.
Where do Asian hornets typically build their nests, and how does this differ from the European hornet?: Asian hornets typically build their primary nests in low-lying areas such as sheds or bushes, while their secondary nests are significantly larger and built high in trees. European hornets, in contrast, prefer sheltered cavities like tree hollows or attics.

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