| EAG and behavioral responses of Helicoverpa armigera males to volatiles from poplar leaves and their combinationswith sex pheromone |
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| 作者姓名： | 邓建宇 黄永平 魏洪义 杜家纬 |
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| 基金项目： | ProjectsupportedbyKnowledgeInnovationProgramfromChineseAcademyofSciences(CAS)(No.KSCX2-02-5-2)
ShanghaiCommissionofScienceandTechnology(Nos.023912004and01JC14051),China |
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| 摘 要： | Electroantennogram (EAG) evaluation of selected compounds from wilted leaves of black poplar, Populus nigra. showed that phenyl acetaldehyde, methyl salicylate, (E)-2-hexenal elicited strong responses from male antennae of Heli-coverpa armigera. When mixed with sex pheromone (Ph), some volatiles, e.g. phenyl acetaldehyde, benzyl alcohol, phenylethanol, methylsalicylate, linalool, benzaldehyde, (Z)-3-hexenol, (Z)-3-hexenylacetate, (Z)-6-nonenol, cineole, (E)-2-hexenal, and geraniol elicited stronger responses from male antennae than Ph alone. Wind tunnel bioassay demonstrated that various volatiles could either enhance or inhibit the effect of synthetic sex pheromone. (E)-2-hexenal, (Z)-3-hexenol and linalool in combination with Ph could not induce any male to land on source at all, whereas phenyl acetaldehyde, benzaldehyde, (Z)-6-nonenol and salicylaldehyde combined with Ph enhanced male response rates by 58.63%, 50.33%, 51.85% and 127.78%, respectively, compared to Ph alone. These results suggested that
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EAG and behavioral responses of Helicoverpa armigera males to volatiles from poplar leaves and their combinationswith sex pheromone |
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| DENG Jian-yu,HUANG Yong-ping WEI Hong-yi DU Jia-wei.EAG and behavioral responses of Helicoverpa armigera males to volatiles from poplar leaves and their combinationswith sex pheromone[J].Journal of Zhejiang University Science,2004(12). |
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| Authors: | DENG Jian-yu HUANG Yong-ping WEI Hong-yi DU Jia-wei |
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| Abstract: | Electroantennogram (EAG) evaluation of selected compounds from wilted leaves of black poplar, Populus nigra. showed that phenyl acetaldehyde, methyl salicylate, (E)-2-hexenal elicited strong responses from male antennae of Heli-coverpa armigera. When mixed with sex pheromone (Ph), some volatiles, e.g. phenyl acetaldehyde, benzyl alcohol, phenylethanol, methylsalicylate, linalool, benzaldehyde, (Z)-3-hexenol, (Z)-3-hexenylacetate, (Z)-6-nonenol, cineole, (E)-2-hexenal, and geraniol elicited stronger responses from male antennae than Ph alone. Wind tunnel bioassay demonstrated that various volatiles could either enhance or inhibit the effect of synthetic sex pheromone. (E)-2-hexenal, (Z)-3-hexenol and linalool in combination with Ph could not induce any male to land on source at all, whereas phenyl acetaldehyde, benzaldehyde, (Z)-6-nonenol and salicylaldehyde combined with Ph enhanced male response rates by 58.63%, 50.33%, 51.85% and 127.78%, respectively, compared to Ph alone. These results suggested that some volatiles should modify sex pheromone caused behavior and that some of them could possibly be used as a tool for disrupting mating or for enhancing the effect of synthetic sex pheromone in the field. |
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| Keywords: | Helicoverpa armigera Wilted leave volatiles Chinese black poplar Sex pheromone EAG Wind-tunnel bioassay |
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