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Electroantenograma de Ceratitis capitata y respuestas de campo en Bactrocera dorsalis con Cera Trap

Proceedings of the 9thISFFEI - ISBN:978-616-3 Bangkok, Thailand

Background: Due to the economic impact of fruit flies, much attention has been focused on the development of trapping systems for detection and monitoring pests and more recently to provide successful pest control without the use of insecticides. This is due to the lately public demand for more benign control techniques. In this respect, the mass trapping technique attempts to provide successful pest control reducing the pest population in the plot by means of traps baited with a lure with or without a low dose of insecticide. Here we performed a multidisciplinary approach to study the response of Ceratitis capitata to one hydrolyzed protein based bait and we measured the efficacy of a mass trapping system on Bactrocera dorsalis in field trials. Methods: Electrophysiological response of C. capitata and a mass trapping field trial was performed on B. dorsalis with a commercial mass trapping system (Cera Trap®). The electroantennography (EAG) were recorded from different volatile compound doses, for both sexes as well as considering the female age fly. Results: The results corroborated that volatiles released by the protein bait are detected by the antennae of C. capitata. A higher collection period for the released volatiles from a constant bait volume does not increase the relative EAG signal. Furthermore, over a range of doses tested, EAG female response was significantly greater than male response and using a fixed dose of substrate, the maximum EAG amplitude was reached for the 4-days old female fly. Conclusions: The field trial results show that the Cera Trap® mass trapping system provides a high level of captures of B. dorsalis, particularly female sex, and therefore it provides a good opportunity to the Integrated Pest Management strategies, as well as organic citrus and fruit harvest.

Nuria Sierras, Cándido Marín, Anna Botta & Ricard Brossa
R&D Plant Physisology, Bioibérica S.A Pol. Ind. “Mas Puigvert”. Ctra. N-II, Km. 680,6. 08389 Palafolls (Barcelona), Spain (e-mail: nsierras@bioiberica.com).

idioma: Inglés


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