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Laboratory evaluation of the compatibility of a new attractant contaminant device containing Metarhizium anisopliae with Ceratitis capitata sterile males

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URI
http://hdl.handle.net/20.500.11939/4479
DOI
10.1016/j.biocontrol.2014.02.007
URL
https://www.sciencedirect.com/science/article/abs/pii/S1049964414000322?via%3Dihub
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openAccess
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Author
San-Andrés, Victoria; Ayala, I.; Abad, M. C.; Primo, Jaime; Castanera, Pedro; Moya, Pilar
Date
2014
Cita bibliográfica
San Andres, V., Ayala, I., Abad, M.C., Primo, J., Castanera, P., Moya, P. (2014). Laboratory evaluation of the compatibility of a new attractant contaminant device containing Metarhizium anisopliae with Ceratitis capitata sterile males. Biological Control, 72, 54-61.
Abstract
Laboratory experiments were conducted to evaluate the compatibility of using the entomopathogenic fungus Metarhizium anisopliae, to be dispensed in a new attractant contaminant device (ACD), jointly with sterilized Ceratitis capitata males, as an integrated approach to control this major pest. The exposure of sterile Vienna 8 (V8) strain and wild type (WT) males to the contaminating part (infective dish) of the ACD showed similar susceptibility levels to the fungal strain (LT50 value of 4.52 and 4.72 days, respectively). Sterile V8 males were significantly less attracted to the infective dish (18.4%) than WT males (28.5%). As the success of Sterile Insect Technique (SIT) heavily relies on the mating success of sterile males in the field, mating performance of infected males was assessed. Around 85% of the females were mated, independently of the male strain and treatment (fungus-treated or untreated males) indicating that mating performance was unaffected by the fungus under laboratory conditions. Females showed a greater tendency to remate if previously mated to fungus-treated males, either V8 or WT. Our data suggest that this M. anisopliae based-ACD does not impair the performance of C. capitata sterile males and, therefore, it could be used combined with area wide SIT-based programs, providing that these results are validated in field conditions. The implications of this combined strategy to control C. capitata are discussed. (C) 2014 Elsevier Inc. All rights reserved.
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