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Article

Assessment of the In Vivo and In Vitro Release of Chemical Compounds from Vespa velutina

1
Department of Plant Biology and Soil Sciences, Facultad de Ciencias, Campus As Lagoas, University of Vigo, 32004 Ourense, Spain
2
Centro de Investigação de Montanha (CIMO), Polytechnic Institute of Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
3
Department of Mechanical Technology, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Igor Jerković
Molecules 2021, 26(22), 6769; https://doi.org/10.3390/molecules26226769
Received: 20 October 2021 / Revised: 3 November 2021 / Accepted: 7 November 2021 / Published: 9 November 2021
(This article belongs to the Special Issue Progress in Volatile Organic Compounds Research II)
Vespa velutina has been rapidly expanding throughout Galicia since 2012. It is causing human health risks and well-known losses in the beekeeping sector. Control methods are scarce, unspecific, and ineffective. Semiochemicals are insect-derived chemicals that play a role in communication and they could be used an integrated pest management tool alternative to conventional pesticides. A previous determination of the organic chemical profile should be the first step in the study of these semiochemicals. HS-SPME in living individuals and the sting apparatus extraction followed by GC-MS spectrometry were combined to extract a possible profile of these compounds in 43 hornets from Galicia. The identified compounds were hydrocarbons, ketones, terpenes, and fatty acid, and fatty acid esters. Nonanal aldehyde appeared in important concentrations in living individuals. While pentadecane, 8-hexyl- and ethyl oleate were mainly extracted from the venom apparatus. Ketones 2-nonanone, 2-undecanone and 7-nonen-2-one, 4,8-dimethyl- were identified by both procedures, as was 1,7-Nonadiene, 4,8-dimethyl-. Some compounds were detected for the first time in V. velutina such as naphthalene, 1,6-dimethyl-4-(1-methylethyl). The chemical profile by caste was also characterized. View Full-Text
Keywords: HS-SPME/GC-MS; nonanal; pentadecane 8-hexyl-; pest; venom apparatus; Vespa velutina HS-SPME/GC-MS; nonanal; pentadecane 8-hexyl-; pest; venom apparatus; Vespa velutina
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MDPI and ACS Style

Rodríguez-Flores, M.S.; Falcão, S.I.; Escuredo, O.; Queijo, L.; Seijo, M.C.; Vilas-Boas, M. Assessment of the In Vivo and In Vitro Release of Chemical Compounds from Vespa velutina. Molecules 2021, 26, 6769. https://doi.org/10.3390/molecules26226769

AMA Style

Rodríguez-Flores MS, Falcão SI, Escuredo O, Queijo L, Seijo MC, Vilas-Boas M. Assessment of the In Vivo and In Vitro Release of Chemical Compounds from Vespa velutina. Molecules. 2021; 26(22):6769. https://doi.org/10.3390/molecules26226769

Chicago/Turabian Style

Rodríguez-Flores, M. S., Soraia I. Falcão, Olga Escuredo, Luis Queijo, M. C. Seijo, and Miguel Vilas-Boas. 2021. "Assessment of the In Vivo and In Vitro Release of Chemical Compounds from Vespa velutina" Molecules 26, no. 22: 6769. https://doi.org/10.3390/molecules26226769

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