Abstract
We report the identification, synthesis, and first field bioassays of a pheromone component with a novel structure produced by adult males of Chlorida festiva (L.) and Chlorida costata Audinet-Serville, longhorn beetle species in the subfamily Cerambycinae. Headspace volatiles from males contained a sex-specific compound that was identified as (6E,8Z)-6,8-pentadecadienal. Traps baited with this compound captured adults of both species and sexes, consistent with the aggregation-sex pheromones produced by males of many species in this subfamily. This compound represents a new structural class of cerambycid pheromones, and it is the first pheromone identified from species in the tribe Bothriospilini.
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Acknowledgments
We thank the Department of Forest Sciences, ESALQ/USP, for access to field sites in Itatinga. Special thanks to Araci Rezende da Silva and Cassio Dias da Silva, owners of the agricultural property in Valentim Gentil, for their invaluable help in field bioassays. We also thank Mateus Tonelli, Arodí P. Favaris, and Mariana O. G. Leite for their help in the first stage of this work. We gratefully acknowledge financial support from FAPESP (process 2013/26936-2) to WDS, INCT-Semioquímicos na Agricultura (FAPESP and CNPq - processes 2008/57701-2 and 573761/2008-6, respectively). The work was supported by USDA-APHIS grant 15-8130-1422-CA to JGM and LMH. The Bruker Avance 600 MHz NMR spectrometer was obtained with NSF grant CHE-0320922 and NIH grant S10RR023677 to UC Riverside.
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Silva, W.D., Millar, J.G., Hanks, L.M. et al. (6E,8Z)-6,8-Pentadecadienal, a Novel Attractant Pheromone Produced by Males of the Cerambycid Beetles Chlorida festiva and Chlorida costata . J Chem Ecol 42, 1082–1085 (2016). https://doi.org/10.1007/s10886-016-0742-7
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DOI: https://doi.org/10.1007/s10886-016-0742-7