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Sexual competitiveness of sterile Ceratitis capitata males exposed to essential oils from non-host plant species native to Argentina

The sterile insect technique (SIT) is used to control fruit fly pests, such as the Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). Enhancing sexual competitiveness of mass-reared sterile males can contribute to making this technique more effective. It has be...

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Autores principales: Jofré Barud, Flavia, Gomez, María Pía, Ruiz, María Josefina, Bachmann, Guillermo Enrique, Goane, Lucía, Segura, Diego Fernando, Lara, Natalia, Murúa, Fernando, Asfennato, Alejandro, Gómez, Érica, Ruiz, Cynthia, Garavelli, Esteban, Vera, María Teresa, Lopez, María Liza
Formato: info:ar-repo/semantics/artículo
Lenguaje:Inglés
Publicado: Wiley 2023
Materias:
Ceratitits capitata
Aceites Esenciales
Control de Plagas
Diptera
Tephritidae
Semioquímicos
Essencial Oils
Pest Control
Semiochemicals
Sterile Insect Release
Argentina
Liberación de Insectos Estériles
Acceso en línea:http://hdl.handle.net/20.500.12123/14367
https://onlinelibrary.wiley.com/doi/10.1111/eea.13255
https://doi.org/10.1111/eea.13255
Sumario:The sterile insect technique (SIT) is used to control fruit fly pests, such as the Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). Enhancing sexual competitiveness of mass-reared sterile males can contribute to making this technique more effective. It has been shown that exposure to volatiles from essential oils (EOs), such as ginger root oil (GRO) and those from host fruits, increases male mating success. We evaluated the effect of EOs from non-host species native to Argentina, Schinus polygama (Cav.) Cabrera (Anacardiaceae) and Baccharis spartioides (Hook. & Arn.) Remy (Asteraceae), on the sexual competitiveness of sterile C. capitata males. In field cage experiments, sterile males exposed to S. polygama EO increased their mating success. In addition, sterile males exposed to this EO achieved more matings on trees than non-exposed males, thus suggesting the former are more prone to locate and defend the pheromone-calling territory. Deprivation of water and/or food significantly reduced males' life span, but exposure to S. polygama EO and GRO did not affect their survival. Schinus polygama EO is composed of mono-and sesquiterpenes with behavioral and electroantennographic responses in medflies, indicating that semiochemicals that boost medfly sexual competitiveness combine in this EO.

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