Identification of the Sex Pheromone of Sesamia cretica Lederer |
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Authors: | Arman Avand-Faghih Brigitte Frérot |
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Affiliation: | (1) Iranian Research Institute of Plant Protection, P.O. Box 1454, Tehran, 19395, Iran;(2) INRA, UMR PISC,1272, Route de St-Cyr, 78026 Versailles cedex, France |
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Abstract: | By using solid phase micro-extraction and gas chromatography–mass spectrometry analyses, a sex pheromone blend for the stem
borer, Sesamia cretica Lederer (Lepidoptera, Noctuidae), was identified as consisting of (Z)-9-tetradecen-1-ol (80%), (Z)-9-tetradecen-1-yl acetate (10%), and (Z)-11-hexadecen-1-ol (10%). The first two components had previously been discovered as attractants for S. cretica in field tests, but had not been identified in the female’s sex pheromone gland. A field-trapping trial showed that the three-component
blend gave the highest catches of male S. cretica. This blend, in a sticky trap, was used to monitor a population of S. cretica in Iran, allowing the seasonal flight activity of this insect to be compared with that of a sympatric population of S. nonagrioides. The role of pheromones in the reproductive isolation of these species is discussed. |
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Keywords: | Sesamia cretica Stem borer Sex pheromone SPME (Z)-11-hexadecen-1-ol Trapping Sympatric species Lepidoptera Noctuidae |
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