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1 June 2013 Biocontrol of Bactrocera oleae (Diptera: Tephritidae) with Metarhizium brunneum and its Extracts
M. Yousef, M. D. Lozano-Tovar, I. Garrido-Jurado, E. Quesada-Moraga
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Abstract

The susceptibility of preimaginal and adult olive fruit fly, Bactrocera oleae (Gmelin) (Diptera: Tephritidae), to a strain of the mitosporic ascomycete Metarhizium brunneum (Petch) (Hypocreales: Clavicipitaceae) and the insecticidal activity of its crude extract to olive fruit fly adults were investigated. Strain EAMb 09/01-Su caused 60% mortality to B. oleae adults, with average survival time (AST) of 8.8 d. In soil treatments against pupariating third-instar larvae, preimaginal B. oleae mortality reached 82.3%, whereas preimaginal mortality targeting puparia was 33.3%. The crude extract of EAMb 09/01-Su strain caused 80.0% adult mortality when administered per os, with AST of 27.7 h. The crude extract was demonstrated to be quite thermostable and photoresistant. These results indicate that M. brunneum EAMb 09/01-Su strain and its crude extract show potential to be used in an integrated pest management olive fruit fly management strategy targeting both adults and preimaginals.

© 2013 Entomological Society of America
M. Yousef, M. D. Lozano-Tovar, I. Garrido-Jurado, and E. Quesada-Moraga "Biocontrol of Bactrocera oleae (Diptera: Tephritidae) with Metarhizium brunneum and its Extracts," Journal of Economic Entomology 106(3), 1118-1125, (1 June 2013). https://doi.org/10.1603/EC12489
Received: 5 December 2012; Accepted: 7 February 2013; Published: 1 June 2013
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KEYWORDS
biological control
crude extract
microbial control
olive fruit fly
secondary metabolite
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