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Electroantennographic responses and field attraction of an emerging invader, the red-necked longicorn beetle Aromia bungii (Coleoptera: Cerambycidae), to the chiral and racemic forms of its male-produced aggregation-sex pheromone

  • Hiroe YasuiEmail author
  • Nao Fujiwara-Tsujii
  • Tetsuya Yasuda
  • Midori Fukaya
  • Satoshi Kiriyama
  • Akio Nakano
  • Takahito Watanabe
  • Kenji Mori
Original Research Paper
  • 96 Downloads

Abstract

The red-necked longicorn beetle Aromia bungii (Faldermann) (Coleoptera: Cerambycidae) is an emerging invader in Japan and has become a major pest of cherry blossom trees, peaches, prunes and Japanese apricots. The male-produced aggregation-sex pheromone, recently identified as (E)-2-cis-6,7-epoxynonenal, has two enantiomers. Here, we determined which enantiomer the male produces and tested the responses of beetle antennae to the enantiomers using electroantennography. The male produced only the (6R,7S)-enantiomer, but both enantiomers elicited responses from the antennae of female beetles. Antennae of males also responded to both enantiomers. In field trials, the (6R,7S)-enantiomer and the racemic mixture were equally attractive to both sexes of the beetle, whereas the unnatural (6S,7R)-enantiomer did not attract any beetles.

Keywords

Aromia bungii Chiral pheromone Field bioassay GC–EAD Invasive beetles 

Notes

Acknowledgements

Many thanks are due to Prof. J. G. Millar of University of California, Riverside, for valuable suggestions and improving our manuscript. We thank “Kubiaka-tsuya-kamikiri busters” organized by Tokushima Prefecture to collect and count the beetles. MF and HY thank the Japan Society for the Promotion of Science (JSPS) KAKENHI (#15K07327), and HY, NF-T and TY thank JSPS KAKENHI (#17K07686) for financial support of this work. This research was also partially supported by Grants from the Project of the NARO Bio-oriented Technology Research Advancement Institution (Research program on development of innovative technology).

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Copyright information

© The Japanese Society of Applied Entomology and Zoology 2018

Authors and Affiliations

  1. 1.Laboratory of Chemical EcologyCentral Region Agricultural Research Center, NAROTsukubaJapan
  2. 2.College of Bioresource SciencesNihon University (NUBS)FujisawaJapan
  3. 3.Tokushima Agriculture, Forestry, and Fisheries Technology Support CenterMyozaiJapan
  4. 4.Department of Bioscience and BioindustryTokushima UniversityMyozaiJapan
  5. 5.Photosensitive Materials Research CenterToyo Gosei Co., LtdInzaiJapan

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