| Title: | "Identification of sex pheromone components of the hessian fly, Mayetiola destructor" |
| Author(s): | Andersson MN; Haftmann J; Stuart JJ; Cambron SE; Harris MO; Foster SP; Franke S; Francke W; Hillbur Y; |
| Address: | "Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden" |
| DOI: | 10.1007/s10886-008-9569-1 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Coupled gas chromatographic (GC)-electroantennographic detection (EAD) analyses of ovipositor extract of calling Hessian fly, Mayetiola destructor, females revealed that seven compounds elicited responses from male antennae. Four of the compounds-(2S)-tridec-2-yl acetate, (2S,10Z)-10-tridecen-2-yl acetate, (2S,10E)-10-tridecen-2-yl acetate, and (2S,10E)-10-tridecen-2-ol-were identified previously in female extracts. Two new EAD-active compounds, (2S,8Z,10E)-8,10-tridecadien-2-yl acetate and (2S,8E,10E)-8,10-tridecadien-2-yl acetate, were identified by GC-mass spectroscopy (MS) and the use of synthetic reference samples. In a Y-tube bioassay, a five-component blend (1 ng (2S)-tridec-2-yl acetate, 10 ng (2S,10E)-10-tridecen-2-yl acetate, 1 ng (2S,10E)-10-tridecen-2-ol, 1 ng (2S,8Z,10E)-8,10-tridecadien-2-yl acetate, and 1 ng (2S,8E,10E)-8,10-tridecadien-2-yl acetate) was as attractive to male Hessian flies as a similar amount of female extract (with respect to the main compound, (2S,10E)-10-tridecen-2-yl acetate). The five-component blend was more attractive to male flies than a three-component blend lacking the two dienes. Furthermore, the five-component blend was more attractive than a blend with the same compounds but that contained one tenth the concentration of (2S,8E,10E)-8,10-tridecadien-2-yl acetate (more accurately mimicking the ratios found in female extract). This suggests that the ratios emitted by females might deviate from those in gland extracts. In a field-trapping experiment, the five-component blend applied to polyethylene cap dispensers in a 100:10 microg ratio between the main component and each of the other blend components attracted a significant number of male Hessian flies. Also, a small-plot field test demonstrated the attractiveness of the five-component blend to male Hessian flies and suggests that this pheromone blend may be useful for monitoring and predicting Hessian fly outbreaks in agricultural systems" |
| Keywords: | "Animals Biological Assay Chromatography, Gas Diptera/*chemistry/*physiology Female Male Sex Attractants/*chemistry/metabolism Sexual Behavior, Animal;" |
| Notes: | "MedlineAndersson, Martin N Haftmann, Jenny Stuart, Jeffrey J Cambron, Sue E Harris, Marion O Foster, Stephen P Franke, Stephan Francke, Wittko Hillbur, Ylva eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2008/12/11 J Chem Ecol. 2009 Jan; 35(1):81-95. doi: 10.1007/s10886-008-9569-1. Epub 2008 Dec 10" |
