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A New Blend of White Sapote Fruit Volatiles as Potential Attractant to Anastrepha ludens (Diptera: Tephritidae)

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Abstract:

The behavioral and electrophysiological responses of nonirradiated male and female Anastrepha ludens (Loew) (Diptera: Tephritidae), to white sapote, Casimiroa edulis Oerst. (Rutaceae), volatiles were investigated. Females flew upwind and landed more often on fruit than on artificial fruit in wind tunnel bioassays. Males flew upwind (but not landed) more frequently on fruit than on artificial fruit. Porapak Q volatile extracts of white sapote also elicited upwind flight and landing on artificial fruit for both sexes. Gas chromatography-electroantennographic detection analysis of white sapote extracts revealed that antennae of both sexes responded to eight compounds. Two peaks were unidentified because they did not separate from the solvent. Subsequent peaks were identified by gas chromatography-mass spectrometry as styrene, myrcene, 1,2,4-trimethylbenzene, 1,8-cineole, and linalool in a proportion of 50: 21: 0.5: 27: 1.5, respectively. Eight peaks were tentatively identified as β-trans-ocimene. The number of A. ludens captured in multilure traps baited with the synthetic white sapote blend was higher than the flies captured by the multilure unbaited traps (control) in field cages. However, the number of flies captured by traps baited with the white sapote blend was not different from that of flies captured by traps baited with hydrolyzed protein. Using standard chemical ecology techniques, we found potential attractants from wild sapote fruit for monitoring and management of A. ludens population.
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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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