Biological Activity of the Synthesized Sex Pheromone and Its Geometrical Isomers of Spodoptera litura (F.)(Lepidoptera:Noctuidae)
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概要
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Biological activities of the synthesized female sex phermone and its geometrical isomers of Spodoptera litura (F.) were examined by a laboratory bioassay. A mixture of cis-9,trans-11-tetradecadien-1-ol acetate (cis-9,trans-11-TDDA) and cis-9,trans-12-tetradecadien-1-ol acetate (cis-9,trans-12-TDDA), the natural pheromonal components, was much more active than any other combinations between geometrical isomers of 9,11-TDDA and 9,12-TDDA. cis-9,trans-11-TDDA and cis-9,trans-12-TDDA evoked a weak response of the male moths at the levels higher than 10^<-2> μg when the compounds were presented individually. Biological activities of the compounds were synergistically enhanced by mixing the two compounds (BR_<50>50 : 10^<-5> μg). The optimum ratio of the two compounds in the mixture was 9 parts of cis-9,trans-11-TDDA and 1 part of cis-9,trans-12-TDDA.Biological importance of quantitative relationships among multiple components of an insect sex pheromone was discussed.
- 1974-06-25
著者
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Tamaki Yoshio
Division Of Entomology National Institute Of Agricultural Sciences
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Yushima Takeshi
Division Of Entomology National Institute Of Agricultural Sciences
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