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Antagonistic Effect of (Z)-11-Hexadecen-1-ol on the Pheromone-Mediated Flight of Helicoverpa zea (Boddie) (Lepidoptera:Noctuidae)

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Abstract

Flight-tunnel experiments were conducted using Helicoverpa zea males to determine whether or not (Z)-11-hexadecen-1-ol (Z11-16:OH), a compound emitted by another heliothine moth species, Heliothis subflexa, is a behavioral antagonist when admixed with the two-component pheromone blend of H. zea. Males were less likely to fly upwind all the way to the source when 0.3% Z11-16:OH was present in the blend. Even 0.1% Z11-16:OH caused differences in the flight behavior of H. zea males; they steered more off the windline than males responding to the pheromone blend alone, resulting in more oblique track angles. Thus Z11-16:OH appears to act antagonistically, along with another compound, (Z)-11-hexadecen-1-ol acetate (Z11-16:Ac), when it is added to the H. zea pheromone blend.

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Authors and Affiliations

  1. Department of Entomology, Iowa State University, Ames, Iowa, 50010

    Carmen Quero & Thomas C. Baker

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  1. Carmen Quero
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  2. Thomas C. Baker
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Quero, C., Baker, T.C. Antagonistic Effect of (Z)-11-Hexadecen-1-ol on the Pheromone-Mediated Flight of Helicoverpa zea (Boddie) (Lepidoptera:Noctuidae). Journal of Insect Behavior 12, 701–710 (1999). https://doi.org/10.1023/A:1020935905506

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