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  • 1
    ISSN: 1573-1561
    Keywords: sex pheromone ; Heliothis virescens (F.) ; (Z)-11-hexadecenal ; (Z)-9-tetradecenal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The sex attractant of adult tobacco budworms,Heliothis virescens (F.) was isolated from ether washes of “calling” females and verified as active by field cage bioassays. The components of the pheromone were identified as (Z)-11-hexadecenal and (Z)-9-tetradecenal by spectroscopic and microdegradative methods. The two components are inactive when tested separately, but when they are mixed in the ratio in which they occur in female washes (16∶1, respectively), the synthesized mixture is equivalent to the natural one in attracting males in large cages. In field tests, 53 μg of synthesized mixture was competitive with four live females.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 4 (1978), S. 709-716 
    ISSN: 1573-1561
    Keywords: Tobacco budworm ; Heliothis virescens (F.) ; virelure ; pheromone ; sex attractant ; (Z)-9-tetradecen-1-ol formate ; (Z)-7-dodecen-1-ol formate ; (Z)-11-hexadecenal ; (Z)-9-tetradecenal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In field trapping experiments, 16∶1 and 32∶1 blends of (Z)-9-tetradecen-1-ol formate (Z-9-TDF) and (Z)-9-tetradecenal (Z-9-TDAL) caught as manyHeliothis virescens (F.) as 3 virgin females and virelure, the synthetic pheromone of this species [a 16∶1 mixture of (Z)-11-hexadecenal (Z-11-HDAL) and (Z)-9-tetradecenal]. Z-9-TDF and (Z)-7-dodecen-1-ol formate (Z-7-DDF) are structurally similar to Z-11-HDAL and Z-9-TDAL, respectively. The sensory input elicited by Z-9-TDF appears to substitute for the sensory input of Z-1 1-HDAL. In contrast, Z-7-DDF had no significant effect on catches of maleH. virescens when used alone, in combination with either Z-11-HDAL or Z-9-TDF as a bait in traps, or as a disruptant of pheromone communication via permeation of the atmosphere. Furthermore, Z-9-TDF may be a more stable and economical attractant forH, virescens males than is Z-1 1-HDAL.
    Type of Medium: Electronic Resource
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