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  • Plodia interpunctella  (3)
  • behavior  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Synergism of an insect sex pheromone specialist neuron: Implications for component identification and receptor interactions (1995)
    Springer
    Journal of chemical ecology 21 (1995), S. 1875-1891 
    Details
    ISSN: 1573-1561
    Keywords: Cabbage looper ; electrophysiology ; antenna ; single cell responses ; behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Extracellular recordings show that the response to the sex pheromone component, (Z)-7-dodecenyl acetate (Z7–12:Ac) by the HS(a) antennal olfactory specialist neuron of the cabbage looper,Trichoplusia ni (Hübner), is synergized by two synthetic sex pheromone analogs and two components of the female sex pheromone. Complementary behavioral measures of upwind flight and copulatory responses to mixtures ofZ7–12:Ac with the analogs and sex pheromone components in a wind tunnel produced behavioral evidence consistent with the neuron's electrophysiological responses. The phenomenon of receptor neuron synergism impacts several areas and provides a note of caution for common practices of identifying secondary sex pheromone components only from field traps and/or wind tunnel tests.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02033683
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  • 2
    Electronic Resource
    Electronic Resource
    Models for dispersal of vapors in open and confined spaces: Applications to sex pheromone trapping in a warehouse (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 929-950 
    Details
    ISSN: 1573-1561
    Keywords: Sex pheromone ; attractance ; behavioral threshold ; Plodia interpunctella ; Indian meal moth ; Lepidoptera ; Pyralidae ; orientation ; chemical communication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Methods are presented for mathematically determining dispersal of a vapor in still air, in turbulent air of zero average velocity, and in turbulent or laminar air currents of constant, nonzero average velocity. The methods are combined with several assumptions about insect behavior to derive an insect attraction model that predicts: (1) In a warehouse a searching insect is likely to be attracted to a calling insect if it comes within an attraction sphere, 0.4–2.5 m in radius. (2) The attraction spaces of typical sex pheromone-baited traps that emit pheromone at rates greater than 0.01 ng/sec extend beyond the boundaries of a 10 × 10 × 10-m warehouse. (3) The searching behavior of an attracted insect is likely to be altered from an extensive to an intensive pattern if it comes within an altered-behavior sphere, 6–60 cm from a calling insect or within 10 m of a trap emitting 0.76 ng/sec. (4) Pheromone does not sink unless it is emitted along with a large amount of a high-vapor pressure solvent. The model is used in support of several hypotheses, including: (1) The effect of an adsorptive surface on the vapor concentration after an extended period of emission is negligible except at positions near the surface. (2) Sex pheromone-baited traps with sources of small dimensions have greater trapping efficiency than otherwise identical traps with sources of large dimensions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00990477
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  • 3
    Electronic Resource
    Electronic Resource
    Quantitative comparison of behavioral and neurophysiological responses of insects to odorants (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 509-531 
    Details
    ISSN: 1573-1561
    Keywords: Pheromone ; olfaction ; electroantennogram ; neurophysiology ; Trichoplusia ni ; Heliothis zea ; Plodia interpunctella ; Lepidoptera ; Noctuidae ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A consistent pattern of relationships emerges from comparisons of insect electroantennograms, peripheral olfactory receptor neuron responses, and behavioral responses to quantified concentrations of odorants. One consistency is that all of the different response measurements can be described by stimulus-response curves of the same form. Another is that the responses have characteristic groupings when they are plotted against odorant concentration. The pattern of relationships is exemplified in the responses ofTrichoplusia ni (Hübner),Heliothis zea (Boddie), andPlodia interpunctella (Hübner) to several pheromone components and analogs. To quantify the relevant stimulus parameters for the response comparisons, the emission rates of the stimulus delivery system were calibrated for several 12 to 17-carbon pheromone components. The stimulus-response relationships determined forT. ni, H. zea, andP. interpunctella are combined with relationships reported for other insects in the literature, and applications are discussed for the interpretation of pheromone trapping and laboratory bioassays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01880096
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  • 4
    Electronic Resource
    Electronic Resource
    Anemotactic response threshold of the Indian meal moth,Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), to its sex pheromone (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 919-928 
    Details
    ISSN: 1573-1561
    Keywords: Sex pheromone ; anemotaxis ; Plodia interpunctella ; Lepidoptera ; Pyralidae ; behavioral threshold ; behavioral alteration threshold ; (Z,E)-9,12-tetradecadien-1-ol acetate ; Indian meal moth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The effect of different concentrations of the sex pheromone (Z,E)-9,12-tetradecadien-1-ol acetate on the upwind anemotactic behavior of the malePlodia interpunctella (Hübner) was measured at 23 ± 1 ° C and 34 ± 1 ° C. The stimulus-response regression lines were analyzed by a new procedure that accounts both for control responses in the absence of pheromone and also for peak responses below 100% in the presence of concentrations considerably above the normal physiological levels. From the regression line for each temperature, the upwind anemotactic thresholds were calculated to be 1.34 × 106 molecules/cm3 at 23 ° C and 1.65 × 104 molecules/cm3 at 34 ° C, similar to other thresholds reported in the literature. Since departures from the two lines occurred at the highest concentrations tested, near 108 molecules/cm3, the upwind anemotactic behavior may change qualitatively above an altered-behavior threshold that is about two orders of magnitude higher than the upwind anemotactic threshold. The lower response at 23 ° C suggests that cool temperatures inhibit flight in response to pheromonal stimulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00990476
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  • 5
    Electronic Resource
    Electronic Resource
    Subtleties in Perception and Discrimination by Cabbage Looper Moths, Trichoplusia ni, of the two 14-carbon Acetate Sex Pheromone Components (1999)
    Springer
    Journal of chemical ecology 25 (1999), S. 455-469 
    Details
    ISSN: 1573-1561
    Keywords: T. ni ; sex pheromone ; behavior ; perception ; flight ; orientation ; trapping ; wind tunnel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three compounds that are emitted by virgin female cabbage looper moths, Trichoplusia ni, (Z)-7-dodecenyl acetate (Z7–12:Ac), (Z)-7-tetradecenyl acetate (Z7–14:Ac), and (Z)-9-tetradecenyl acetate (Z9–14:Ac), are detected by antennal olfactory receptor neurons specialized to detect sex pheromone components. The principal evidence signifying that either or both of Z7–14:Ac and Z9–14:Ac have an effect on male behavior comes from an observed reduction in the numbers of males trapped by Z7–12:Ac paired with a six-component mixture. The evidence conforms to a hypothesis that either or both of these compounds are the basis for discrimination between the two mixtures. However, scant evidence for this hypothesis was obtained in paired-source laboratory wind-tunnel assays, even at airborne concentrations of Z7–14:Ac and Z9–14:Ac that ranged up to 1000× that emitted by a female. Furthermore, there was little evidence from single-source laboratory or field trap assays confirming that Z7–14:Ac and Z9–14:Ac at or above natural stimulus strengths modify the moth's perception of Z7–12:Ac. The data suggest that discrimination of small mixture differences may not be resolvable within the confines of a wind tunnel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020941501388
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