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  • 1
    Electronic Resource
    Electronic Resource
    A comparison of the effects of limonin on Colorado potato beetle, Leptinotarsa decemlineata, and fall armyworm, Spodoptera frugiperda, larval feeding (1991)
    Springer
    Entomologia experimentalis et applicata 58 (1991), S. 191-194 
    Details
    ISSN: 1570-7458
    Keywords: Fall armyworm ; Colorado potato beetle ; limonin ; feeding behavior ; deterrent ; toxin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164944
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A study on mode of antifeedant effects of epilimonol against Leptinotarsa decemlineata (1991)
    Springer
    Entomologia experimentalis et applicata 60 (1991), S. 13-18 
    Details
    ISSN: 1570-7458
    Keywords: Antifeedant ; epilimonol ; limonoid ; mode of action ; Colorado potato beetle ; Leptinotarsa decemlineata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Colorado potato beetle, Leptinotarsa decemlineata (Say), neonate larvae and adults were bioassayed with the antifeedant epilimonol. Three-day exposure of neonate larvae resulted in increasing delays in development (appearance of 4th instars) corresponding to increasing dosages. At a dosage of 20 μg/cm2, development was delayed by about 40% without other detrimental effects. Mouthpart coating of adult beetles with epilimonol emulsion resulted in significant feeding reductions, while injection of epilimonol into the haemolymph of female adults did not elicit significant feeding reduction or oviposition suppression. The results indicated that epilimonol did not elicit significant internal toxicity, and feeding reductions were most likely exerted by action on chemoreceptors on mouthparts or in the preoral cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164954
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Enhancement of insect pheromone responses by green leaf volatiles (1990)
    Springer
    Naturwissenschaften 77 (1990), S. 29-31 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01131792
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of sex pheromone components of jack pine budworm,Choristoneura pinus pinus freeman (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 159-167 
    Details
    ISSN: 1573-1561
    Keywords: Choristoneura pinus pinus ; jack pine budworm ; Lepidoptera ; Tortricidae ; (E,Z)-11-tetradecenyl acetate ; (E,Z)-11-tetradecen-1-ol ; sex pheromone ; sex attractant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Chemical identification and field-trapping experiments have shown that a blend of 85∶15 (E,Z)-11-tetradecenyl acetates and 85∶15 (E,Z)-11-tetradecen-1-ols (in a 9∶1 ratio) are female sex pheromone components for jack pine budworm,Choristoneura pinus pinus. This blend of chemicals, formulated in PVC (0.1 %, w/w) sources is as effective a trap bait as virgin females. Preliminary wind tunnel observations have indicated that this blend, effective as a trap bait, is not equivalent to females.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988198
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Looplure efficacy and electrophysiological responses in three plusiinae species (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1455-1462 
    Details
    ISSN: 1573-1561
    Keywords: Efficacy ; electroantennogram ; looplure ; response threshold ; sex attractant ; trapping ; Trichoplusia ni ; Pseudoplusia includens ; Rachiplusia ou ; pheromone ; Lepidoptera ; Noctuidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Source concentration differences of (Z)-7-dodecen-1-ol acetate, or looplure, were evaluated for field trapping efficiency and electrophysiological responses with malePseudoplusia includens (Walker),Trichoplusia ni (Hubner) andRachiplusia ou (Guenné) (Lepidoptera: Noctuidae). Sticky traps baited with 1000 μg of the lure captured a significantly greater (P 〈 0.05) number of maleP. includens andT. ni than any other concentration;R. ou males were caught at a greater rate in traps baited with 100 μg of looplure, significantly more (P 〈 0.05) than with 1000 μg. Electroantennogram (EAG) studies demonstrated that antennae of maleP. includens have a lower response threshold to looplure than eitherT. ni orR. ou antennae, the latter demonstrating the highest significant threshold of response. No differences in the stimulus-response functions of the three species were detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989102
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Behavioral effects of secondary components of sex pheromone of western spruce budworm (Choristoneura occidentalis) free (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 265-270 
    Details
    ISSN: 1573-1561
    Keywords: Choristoneura occidentalis ; western spruce budworm ; Lepidoptera ; Tortricidae ; pheromones ; behavior ; wind tunnel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In a laboratory wind tunnel, upwind flight and close-range orientation to a pheromone source by maleC. occidentalis were facilitated by the addition of the secondary componentsE/Z11-tetradecen-1-ol acetate (89∶11) andE/Z11-tetradecen-1-ol (85∶15) to low source concentrations of the primary components,E/Z11-tetradecenal (92∶8). Male responses to the blends tested never equalled their responses to virgin females. The primary components alone, when released at a rate similar to that of a “calling” female, never elicited male upwind flight or source location. However, the addition of the secondary components enhanced these behavioral sequences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987854
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    Paper (German National Licenses)
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