Components of the sex pheromone of the female spotted stalk borer,Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae): Identification and preliminary field trials |
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| Authors: | Brenda F Nesbitt P S Beevor D R Hall R Lester J C Davies K V Seshu Reddy |
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| Affiliation: | (1) Tropical Products Institute, 56–62 Gray's Inn Road, WC1X 8LU London, England;(2) International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), 1-11-256, Begumpet, Hyderabad-500016 A. P., India |
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| Abstract: | FemaleChilo partellus (Swinhoe) abdominal tip extracts were examined by gas-liquid chromatography (GLC) combined with simultaneous electroantennographic (EAG) recording from the male moth. Two olfactory stimulants were detected and identified as (Z)-11-hexadecenal (I) and (Z)-11-hexadecen-1-ol (II) by their GLC behavior, microchemical reactions, and comparison with synthetic materials. Both compounds were detected in volatiles emitted by the  calling female moth. Synthetic (Z)-9-tetradecenyl formate, a structural analog of aldehyde (I), also elicited a significant EAG response from the male moth. Field trials carried out in India using synthetic (I) and (II) as bait in water traps showed that compound (I) was highly attractive to maleC. partellus; compound (II) was not attractive, and its addition to (I) significantly reduced trap catches. |
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| Keywords: | Sex pheromone sex attractant Lepidoptera Pyralidae Chilo partellus spotted stalk borer electroantennography (Z)-11-hexadecenal (Z)-11-hexadecen-1-ol (Z)-9-tetradecenyl formate |
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