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Environ Entomol

Title:		Behavioral and Antennal Responses of Drosophila suzukii (Diptera: Drosophilidae) to Volatiles From Fruit Extracts
Author(s):		Abraham J; Zhang A; Angeli S; Abubeker S; Michel C; Feng Y; Rodriguez-Saona C;
Address:		"Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Universita 5, 39100 Bolzano, Italy. Present Address: Department of Entomology and Wildlife, University of Cape Coast, Cape Coast-Ghana. jonnieabraham@daad-alumni.de. USDA, ARS, Invasive Insect Biocontrol and Behavior Laboratory, 10300 Baltimore Ave., BARC-West, Beltsville, MD 20705. Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Universita 5, 39100 Bolzano, Italy. Department of Entomology, Rutgers University P.E. Marucci Center, 125A Lake Oswego Rd., Chatsworth, NJ 08019"
Journal Title:		Environ Entomol
Year:		2015
Volume:		20150316
Issue:		2
Page Number:		356 - 367
DOI:		10.1093/ee/nvv013
ISSN/ISBN:		1938-2936 (Electronic) 0046-225X (Linking)
Abstract:		"Native to Southeast Asia, the spotted wing drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), has become a serious pest of soft-skinned fruit crops since its introduction into North America and Europe in 2008. Current monitoring strategies use baits based on fermentation products; however, to date, no fruit-based volatile blends attractive to this fly have been identified. This is particularly important because females are able to cut into the epicarp of ripening fruit for oviposition. Thus, we conducted studies to: 1) investigate the behavioral responses of adult D. suzukii to volatiles from blueberry, cherry, raspberry, and strawberry fruit extracts; 2) identify the antennally active compounds from the most attractive among the tested extracts (raspberry) using gas chromatography (GC)-mass spectrometry and coupled gas chromatography -electroantennographic detection (GC-EAD); and 3) test a synthetic blend containing the EAD-active compounds identified from raspberry extract on adult attraction. In olfactometer studies, both female and male D. suzukii were attracted to all four fruit extracts. The attractiveness of the fruit extracts ranks as: raspberry >/= strawberry > blueberry >/= cherry. GC analyses showed that the fruit extracts emit distinct volatile compounds. In GC-EAD experiments, 11 raspberry extract volatiles consistently elicited antennal responses in D. suzukii. In choice test bioassays, a synthetic EAD-active blend attracted more D. suzukii than a blank control, but was not as attractive as the raspberry extract. To our knowledge, this is the first report of a behaviorally and antennally active blend of host fruit volatiles attractive to D. suzukii, offering promising opportunities for the development of improved monitoring and behaviourally based management tools"
Keywords:		Animals Arthropod Antennae/drug effects/physiology Chemotaxis Drosophila/drug effects/*physiology Female Fruit/chemistry Insect Control/*methods Male Plant Extracts/*chemistry Rosaceae/*chemistry Vaccinium/*chemistry Volatile Organic Compounds/*metabolism;
Notes:		"MedlineAbraham, John Zhang, Aijun Angeli, Sergio Abubeker, Sitra Michel, Caryn Feng, Yan Rodriguez-Saona, Cesar eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2015/08/28 Environ Entomol. 2015 Apr; 44(2):356-67. doi: 10.1093/ee/nvv013. Epub 2015 Mar 16"