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Insects 2018, 9(3), 119;

Detection of Volatile Constituents from Food Lures by Tephritid Fruit Flies

Unit of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, P.O. Box 102, 230 53 Alnarp, Sweden
Department of Zoological Sciences, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
International Institute of Tropical Agriculture (IITA), Tri Postal, Cotonou 08 BP 0932, Benin
Author to whom correspondence should be addressed.
Received: 17 July 2018 / Revised: 10 September 2018 / Accepted: 12 September 2018 / Published: 14 September 2018
(This article belongs to the Special Issue Chemical Ecology)
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Tephritid fruit flies require protein for sexual and gonotrophic development. Food-based lures are therefore widely used in strategies to detect and control fruit flies in the Tephritidae family. However, these baits are attractive to a broad range of insect species. We therefore sought to identify volatiles detected by the fly antennae, with the goal to compose lures that more specifically target tephritids. Using gas chromatography-coupled electroantennographic detection (GC-EAD) we screened for antennal responses of four important tephritid species to volatile compounds from five commercially available protein-based baits. Antennal active compounds were reconstituted in synthetic blends for each species and used in behavioral assays. These species-based blends were attractive in olfactometer experiments, as was a blend composed of all antennally active compounds from all the four species we observed (tested only in Bactrocera dorsalis, Hendel). Pilot field tests indicate that the blends need to be further evaluated and optimized under field conditions. View Full-Text
Keywords: Bactrocera dorsalis; behavior; electrophysiology; food-baits; olfactometer; Tephritidae Bactrocera dorsalis; behavior; electrophysiology; food-baits; olfactometer; Tephritidae

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Biasazin, T.D.; Chernet, H.T.; Herrera, S.L.; Bengtsson, M.; Karlsson, M.F.; Lemmen-Lechelt, J.K.; Dekker, T. Detection of Volatile Constituents from Food Lures by Tephritid Fruit Flies. Insects 2018, 9, 119.

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