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  • 1
    Electronic Resource
    Electronic Resource
    Role of kairomones from host accessory gland secretion in host recognition by Telenomus remus and Trichogramma pretiosum, with partial characterization (1987)
    Springer
    Entomologia experimentalis et applicata 44 (1987), S. 37-43 
    Details
    ISSN: 1570-7458
    Keywords: Telenomus remus ; Trichogramma pretiosum ; Spodoptera fruigiperda ; Heliothis zea ; kairomones ; accessory gland ; host acceptance ; host recognition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Cette étude a utilisé une technique voisine de celle employée par Strand & Vinson (1982), pour examiner les réactions de parasitoïdes à des billes de verre enduites de substances, afin de déterminer l'influence des sécrétions des glandes annexes (AGM) de Spodoptera frugiperda et Heliothis zea dans le repérage des hôtes par Telenomus remus et Trichogramma pretiosum. Les femelles de T. remus réagissaient plus aux billes enduites d'AGM de S. frugiperda qu'aux billes témois non enduites; celles de T. pretiosum réagissaient plus aux billes enduites d'AGM de H. zea qu'aux témoins. T. remus n'a pas réagi aux billes enduites d'AGM de H. zea, ni T. pretiosum à celles enduites d'AGM de S. frugiperda. Les poids moléculaires des protéines des glandes annexes de H. zea sont 1.100 K et 50 K, et ceux de S. frugiperda de 700 K et 30 K (Strand & Vinson, 1983a). T. remus a mieux réagi aux billes enduites de la fraction 700 K de S. frugiperda qu'a celles enduites de la fraction 30 K, aux deux fractions de H. zea et aux billes témoins. Les billes enduites de la fraction 1.100 K de H. zea ont provoqué aussi une réaction significative de T. remus. Les sécrétions des glandes annexes de S. frugiperda et de H. zea contiennent des kairomones qui interviennent dans le repérage des hôtes respectifs de T. remus et de T. pretiosum. Mais, il semble peu probable que ces substances soient seules responsables de la reconnaissance de l'hôte.
    Notes: Abstract Accessory gland materials from Spodoptera frugiperda (J. E. Smith) and Heliothis zea (Boddie) (Lepidoptera: Noctuidae) contained kairomones that influenced the host recognition or acceptance behavior of Telenomus remus Nixon (Hymenoptera: Scelonidae) and Trichogramma pretiosum Riley (Hymeoptera: Trichogrammatidae), respectively. Material from S. frugiperda accessory glands stimulated ovipositor probing and drilling by female T. remus but not T. pretiosum. Accessory gland material from H. zea stimulated ovipositor probing and drilling by female T. pretiosum but not T. remus. An active material for T. remus is found in the 700 K protein fraction of accessory gland material from S. frugiperda. The oviposition behavior of the parasitoids is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361307
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  • 2
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects. XV. (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 245-251 
    Details
    ISSN: 1573-1561
    Keywords: Acids ; moth scales ; Heliothis zea ; kairomones ; parasitoids ; biological control ; Trichogramma pretiosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Acids found in moth scales of laboratory-rearedHeliothis zea (Boddie) moths are hexanoic, heptanoic, octanoic, nonanoic, 2- (or 3-) furan carboxylic, phenylacetic, benzoic, sorbic, and 4-hydroxybenzoic acid. The last two of these acids are preservatives added to the artifical diet as sorbic acid and methyl-p-hydroxybenzoate. FemaleTrichogramma pretiosum Riley exhibited increased rates of parasitization ofH. zea eggs in the presence of some of these compounds in laboratory experiments. Exposure to a mixture of all of these compounds did not increase parasitization, and the elimination of acids from the crude moth-scale extract did not reduce parasitization by the wasps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987852
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  • 3
    Electronic Resource
    Electronic Resource
    Beneficial arthropod behavior mediated by airborne semiochemicals. IX. Differential response ofTrichogramma pretiosum, an egg parasitoid ofHeliothis zea, to various olfactory cues (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 3531-3544 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma pretiosum ; Hymenoptera ; Trichogrammatidae ; Heliothis zea ; Spodoptera frugiperda ; Lepidoptera ; Noctuidae ; sex pheromone ; kairomone ; wind tunnel ; orientation behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The behavior ofTrichogramma pretiosum Nixon wasps when exposed to different olfactory cues was studied in a wind tunnel. Compared to clean air, the sex pheromone of its hostHeliothis zea (Boddie) increased wasp residence times, walking times, and path lengths on a platform and decreased walking velocity. If wasps were released on top of a glass rod above a platform, the odor caused the wasps to land shortly after takeoff. In addition, a clear dose effect with regard to total residence and walking times was found. These responses were not elicited by three dosages of the sex pheromone ofSpodoptera frugiperda (J.E. Smith) or by a blend of saturated acetates. These results correspond with the observation thatH. zea is a common field host ofT. pretiosum, whereas eggs ofS. frugiperda are rarely attacked by this parasitoid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00982116
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  • 4
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 513-518 
    Details
    ISSN: 1573-1561
    Keywords: kairomone ; parasitoid ; Trichogramma pretiosum ; biological control ; host finding ; host acceptance ; Heliothis zea ; Trichoplusia ni
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The response ofTrichogramma pretiosum Riley to stimuli fromHeliothis zea (Boddie) and fromTrichoplusia ni (Hübner) was examined in the laboratory. Kairomones were responsible, at least in part, for the greater response to naturally depositedH. zea eggs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989072
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  • 5
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects. IV. Effect of kairomones on productivity and longevity ofTrichogmmma pretiosum riley (Hymenoptera: Trichogrammatidae) (1976)
    Springer
    Journal of chemical ecology 2 (1976), S. 67-72 
    Details
    ISSN: 1573-1561
    Keywords: kairomone ; parasites ; productivity ; longevity ; Trichogramma pretiosum ; biological control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Kairomones in the scales ofHeliothis zea (Boddie) increased the percent parasitization, the number of progeny produced, and the longevity of femaleTrichogramma pretiosum Riley.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988025
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  • 6
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 909-917 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma pretiosum ; Hymenoptera ; Trichogrammatidae ; biological control ; kairomone ; Heliothis zea ; Lepidoptera ; Noctuidae ; host density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Trichogramma pretiosum Riley females exhibit success-motivated searching after oviposition. The stimulatory effect of contact with host eggs makes host-egg density an important factor in determining the appropriate strategy for behavioral manipulation, using kairomones, that simulate host seeking, in biological control programs. Host eggs can be used, in conjunction with kairomones or by themselves, to improve the performance of these important beneficial insects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987616
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  • 7
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects: X. Laboratory studies on manipulation of host-finding behavior ofTrichogramma pretiosum riley1 with a kairomone extracted fromHeliothis zea (boddie) moth scales (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 635-648 
    Details
    ISSN: 1573-1561
    Keywords: Kairomone ; parasitoids ; biological control ; Trichogramma pretiosum ; Hymenoptera ; Trichogramma tidae ; Heliothis zea ; Lepidoptera ; Noeturidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The behavioral response ofTrichogramma pretiosum Riley females to the kairomone found inHeliothis zea (Boddie) moth scales is examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987711
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  • 8
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects: III. Stimulation ofTrichogramma achaeae,T. pretiosum, andMicroplitis croceipes with host-seeking stimuli at time of release to improve their efficiency (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 431-438 
    Details
    ISSN: 1573-1561
    Keywords: kairomones ; Trichogramma achaeae ; Trichogramma pretiosum ; Microplitis croceipes ; Heliothis Spp. ; host-seeking stimuli ; insect behavior ; releasers ; pest management ; biological control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Frass from larvae of the corn earworm,Heliothis zea (Boddie) and scales fromH. zea moths (that are known to contain the host-seeking stimulus, tricosane) stimulate and orient host-seeking activity in femaleMicroplitis croceipes (Cresson), a larval parasite ofH. zea, andTrichogramma spp., egg parasites ofH. zea. When larval frass, moth scales, and tricosane were used as sign stimuli (releasers) forM. croceipes, T. pretiosum (Riley), andT. achaeae Nagaraji and Nagarkatti, respectively, at time of their release from laboratory containers, parasite performance improved, resulting in significantly increased rates of parasitization over that of unstimulated parasites. Stimulation ofM. croceipes with larval frass had an overriding effect on this parasite's innate tendency to disperse upon release, thereby increasing the numbers remaining and prolonging their retention in the target area. Supplying the appropriate host-seeking stimuli to these 3 hymenopterous parasites ofH. zea at time of their release to improve their efficiency greatly increases the probability of their effective utilization in pest management systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988584
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