DOI: 10.31220/agriRxiv.2021.00111

•  

  Abstract: Abstract The Asian hornet ( Vespa velutina ) has rapidly become a source of stress for the beekeeping sector. Several methods have been developed to control its impact and spread, though some of these impose a high risk for native insects. Among these methods are electric harps, which are physical barriers that electrocute hornets passing through two wires powered by a current generator. However, the risk to local fauna of electric harps has not previously been tested. Here we evaluated the selectiveness and risk of damage for local entomofauna of the electric harps in a study carried out over three years and four locations in Girona province (NE Catalonia, Spain). The electric harps showed a high selectiveness, with 82.9% of all insects trapped (3,902 individuals) catalogued as Asian hornets, although this greatly varied over years and locations with values ranging from 20.5% to 94.3%. The risk damage of electric harps for local entomofauna was very low in all surveyed areas and years. Native insects accounted for, as a mean, 1.7% of all insects trapped over the study period (range 0-4.5%). Accordingly, the electric harps imply a low risk for the native European hornet Vespa crabro , since only 0.1% of the captures belonged to that species. Our results suggest that electric harps might be a useful method to reduce predation pressure of the Asian hornet at beehives while imposing a low risk for local entomofauna. The employment of standardised techniques, such as the placement of electric harps, may be useful to assess inter-annual variations or site-specific differences on the predation pressure of the Asian hornet at beehives. Further research should evaluate whether the placement of electric harps improves bee colony survival or vigour parameters (i.e. honey production, amount of brood, pollen, etc.).

  Key words: harps; electric; asian hornet; beehives; entomofauna; selectivenes

  Submit time: 1 January 2021

  Copyright: The copyright holder for this preprint is the author/funder, who has granted agriXiv a license to display the preprint in perpetuity.
• html

• 图表

• Suvita Rani, Shubham Singh, Sujit Bhattachary. What is the impact of India's plant variety protection act? An analytical examination based on registrations under this act.. 2020. doi: 10.31220/agriRxiv.2020.00004

  N.Z. Stancheva, J. Nakev, Desislava Vlahova‐Vangelova, Desislav Balev, Stefan Dragoe. Impact of Siberian larch dihydroquercetin or dry distilled rose petals as feed supplements on 8 lamb's growth performance, carcass characteristics and blood count parameters.. 2020. doi: 10.31220/agriRxiv.2020.00006

  Aida Safina Aridi, Ling ChinNyuk, Nur Akmal Ishak, M. Y. Nor Nadiah, Mohammad Faisal Ahmed, Yus Aniza Yuso. Structural FTIR analysis of cellulose functional groups isolated from Leucaena leucocephala pods using different bleaching agents.. 2020. doi: 10.31220/agriRxiv.2020.00026

  Alan G. Buddie, Ivan Rwomushana, Lisa Offord, Simeon Kibet, Fernadis Makale, Djamila Djeddour, Giovanni Cafà, Koskei K. Vincent, Alexander Muvea, Duncan Chacha, Roger Da. First report of the invasive golden apple snail, Pomacea canaliculata in Kenya.. 2020. doi: 10.31220/agriRxiv.2020.00027

  Rajeev Kumar, Bimlendra Kumari, Shikha Yashveer, Prashant Kaushi. Assessment of genetic diversity among poplar ( Populus deltoides Marsh.) clones from India using RAPD markers.. 2020. doi: 10.31220/agriRxiv.2020.00014

  Saeed Nosratabadi, Nesrine Khazami, Marwa Ben Abdallah, Zoltan Lackner, Shahab S. Band, Amir Mosavi, Csaba Mak. Social capital contributions to food security: a comprehensive literature review.. 2020. doi: 10.31220/agriRxiv.2020.00021

  Todd S. Rosenstock, M. Mayzelle, Nictor Namoi, Peter Fantk. Climate impacts of natural farming: A cradle to gate comparison between conventional practice and Andhra Pradesh Community Natural Farming.. 2020. doi: 10.31220/agriRxiv.2020.00013

  Antonia Patt, Lorenz Gygax, Edna Hillmann, Nina M. Kei. Signs of hunger in dairy calves indicate suboptimal periods in two weaning methods.. 2020. doi: 10.31220/agriRxiv.2020.00020

  Joanna Banach, Katarzyna Majewska, Małgorzata Grzywińska‐Rąpca, Krystyna Żuk‐Gołaszewsk. The use of a non-invasive electrical method to assess the chemical composition, hardness, and color of durum wheat grain cultivated in an integrated system.. 2021. doi: 10.31220/agriRxiv.2021.00087

  Ilce Gabriela Medina-Meza, Joshua VanderWeide, Cristóbal Torres-Palacios, Paolo Sabbatin. Quantitative metabolomics unveils the impact of agricultural practices in grape metabolome.. 2021. doi: 10.31220/agriRxiv.2021.00029

• ID	Submit time	Number	Download
  1	2021-01-01	10.31220/agriRxiv.2021.00111V1	Download

• Public  Anonymous  To author only Submit Comments