Sex pheromone of horse-chestnut leafminer Camneraria ohridella and its use in a pheromone-based monitoring system |
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Authors: | Kalinová B Svatos A Kindl J Hovorka O Hrdý I Kuldová J Hoskovec M |
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Affiliation: | (1) Department of Natural Products – Insect Chemistry Group, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic;(2) Max Planck Institute of Chemical Ecology, Winzerlaer Str. 10, 07745 Jena, Germany |
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Abstract: | Gas chromatography combined with electroantennographic detection (GC-EAD), electroantennography (EAG), and wind-tunnel and field experiments were used to reinvestigate the composition of Cameraria ohridella (Lepidoptera, Gracillariidae, Lithocolletinae) sex pheromone. The GC-EAD experiments showed one EAD-active area corresponding to the major pheromone component, (8E,10Z)-tetradeca-8,10-dienal. The EAG experiments proved that (9E)-tetracedecenal and stereoisomers of (8E,10Z)-tetradeca-8,10-dienal exhibited significant electrophysiological activity and could, therefore, be considered as possible minor pheromone components. However, wind-tunnel and field experiments demonstrated that none of these compounds affect the efficacy of the main pheromone component. A monitoring system based on (8E,10Z)-tetradeca-8,10-dienal was developed and used to study the flight activity of C. ohridella. |
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Keywords: | Pheromone (8E 10Z)-tetradeca-8 10-dienal Cameraria
ohridella Lepidoptera horse-chestnut leafminer antennal sensitivity field experiments monitoring |
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