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  • Lepidoptera  (62)
  • Springer  (62)
  • Nature Publishing Group
  • 1990-1994  (62)
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  • 1
    Electronic Resource
    Electronic Resource
    Sex pheromone of the european sunflower moth,Homoeosoma nebulellum (Den. & Schiff.) (Lepidoptera: Pyralidae) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1399-1414 
    Details
    ISSN: 1573-1561
    Keywords: Lepidoptera ; Pyralidae ; Homoeosoma nebulellum ; European sunflower moth ; sex pheromone ; identification ; multicomponent blend ; (Z,E)-9,12-tetradecadienal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Four components, (Z)-9-tetradecenal (8.6%), (Z,E)-9,12-tetradecadienal (4.8%), (Z)-11-hexadecenal (49.5%), and (Z)-13-octadecenal (37.1%), were identified in extracts of female pheromone glands of the European sunflower moth,Homoeosoma nebulellum (Lepidoptera: Pyralidae) using GC and GC-MS analyses. EAG and single-cell recordings of male antennal receptors gave strong evidence for (Z,E)-9,12-tetradecadienal as the antennal key compound of sex pheromone detection in this species. This result was confirmed by field trapping; removal of (Z,E)-9,12-tetradecadienal from quaternary blends completely suppressed the male catches. The synthetic blends with this compound as a major component caught five times less males than the blends reproducing the ratio found in the female extracts [5% of (Z,E)-9,12-tetradecadienal only]. The occurrence of a minor component perceived as the most biologically relevant compound is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00983772
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  • 2
    Electronic Resource
    Electronic Resource
    Developmental inhibition ofSpodoptera litura (Fab.) larvae by a novel caffeoylquinic acid from the wild groundnut,Arachis paraguariensis (Chod et Hassl.) (1993)
    Springer
    Journal of chemical ecology 19 (1993), S. 2917-2933 
    Details
    ISSN: 1573-1561
    Keywords: Spodoptera litura ; Lepidoptera ; Noctuidae ; Arachis paraguariensis ; wild groundnuts ; caffeoylquinic acids ; resistance ; rutin ; quercetin ; phenolics ; growth inhibition ; Arachis hypogaea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A novel compound, 1-caffeoyl-4-deoxyquinic acid (1-CdQA) has been identified along with 3-caffeoylquinic acid (3-CQA) and 5-caffeoylquinic acid (5-CQA) (syn. chlorogenic acid) in the foliage ofArachis paraguariensis, a wild species of groundnut that is highly resistant to attack by the larvae ofSpodoptera litura. When neonate larvae were fed on diets treated with 3-CQA or 1-CdQA, their development was severely inhibited compared to larvae on untreated diets, and the effects were similar in nature and magnitude to those observed for larvae feeding on diets treated with 5-CQA, rutin, and quercetin. The effects of all the compounds were dose related, and their optimal concentration was approximately 3 mM, which corresponds to the total foliar concentration of both caffeoylquinic acids and quercetin diglycosides inA. paraguariensis. After 24 h, the development of third stadium larvae feeding on diets treated with 5-CQA, rutin and 1-CdQA was promoted compared to larvae on control diets, but after 96 hr larvae feeding on treated diets had gained significantly less weight than those on the control diets. 1-CdQA, 3-CQA, and quercetin dyglycosides (previously identified in the foliage ofA. paraguariensis) are considered to be valuable components in resistance of groundnuts toS. litura and may provide useful genetic markers in future breeding for resistance to this pest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00980592
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  • 3
    Electronic Resource
    Electronic Resource
    Identification and bioassay of sex pheromone components of carob moth,Ectomyelois ceratoniae (Zeller) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1973-1988 
    Details
    ISSN: 1573-1561
    Keywords: Flight tunnel ; gas chromatography-electrophysiology ; mass ; spectrometry ; aldehydes ; (Z,E)-9,11,13-tetradecatrienal ; (Z,E)-9,11-tetra-decadienal ; (Z)-9-tetradecenal ; pheromone ; Lepidoptera ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three sex pheromone components of the carob moth were isolated and identified from the extract of female pheromone glands, using a variety of techniques including coupled gas chromatographic-electroantennographic recordings, coupled gas chromatographic-mass spectrometric analysis, microozonolysis, electroantennographic assays of monounsaturated standards, wind-tunnel bioassays, and field trials. The major component was identified as (Z,E)-9,11,13-tetradecatrienal, a novel lepidopterous pheromone component structure. Two minor components, either one of which improves the upwind flight response of males when blended with the major component, were identified as (Z,E)-9,11-tetradecadienal, and (Z)-9-tetra-decenal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00992582
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of sex pheromone of browntail moth,Euproctis chrysorrhoea (L.) (Lepidoptera: Lymantriidae) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 897-910 
    Details
    ISSN: 1573-1561
    Keywords: Browntail moth ; Euproctis chrysorrhoea (L.) ; Lepidoptera ; Lymantriidae ; pheromone ; (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate ; sex attractant ; dose dependence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A unique sex attractant pheromone was isolated and identified from extracts of ovipositor tips from the female browntail moth (Lepidoptera: Lymantriidae). The pheromone compound, (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate, CH3CH2CH=CHCH2CH=CHCH2CH= CH(CH2)4CH=CH(CH2)6O2CCH(CH3)2, was identified by a combination of gas chromatography, mass spectrometry, and microreactions and was confirmed by synthesis. Traps baited with 5–50 μg of the synthetic pheromone, dispensed from rubber septa treated with an antioxidant and a UV stabilizer, gave male moth captures that were comparable to traps baited with three virgin females. Higher (250 μg) and lower (0.04–2.5 μg quantities of the synthetic pheromone on septa captured somewhat fewer males. Captures were the same for similar quantities of the natural and synthetic pheromone. Minor, inactive components in the tip extract were identified as a mixture of 7- and 8-pentacosanone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01395598
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of kairomones from egg and female adult stages ofOstrinia nubilalis (Hübner) (Lepidoptera, Pyralidae) onTrichogramma brassicae Bezdenko (Hymenoptera, Trichogrammatidae) female kinesis (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 761-773 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma brassicae ; Hymenoptera ; Trichogrammatidae ; kairomone ; pheromone ; Ostrinia nubilalis ; Lepidoptera ; Pyralidae biological control ; European corn borer ; parasitoid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Volatile chemicals emanating from the different developmental stages ofOstrinia nubilalis Hübner (Lepidoptera, Pyralidae) increase the mobility ofTrichogramma brassicae Bezdenko (Hymenoptera, Trichogrammatidae) in a linear airflow olfactometer. In this paper, we have demonstrated that airborne chemicals from egg masses and virgin females during calling activity stimulate an intensive search behavior byTrichogramma females. On the other hand, emanations from mated females with extruded abdominal tips do not incite the parasitoid's movement. For the moment we cannot elucidate, with these bioassays, the real role of these kairomones as attractants, guides, stimulants, or retainers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994613
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  • 6
    Electronic Resource
    Electronic Resource
    Hormonal control of pheromone responsiveness in the male black cutwormAgrotis ipsilon (1993)
    Springer
    Cellular and molecular life sciences 49 (1993), S. 721-724 
    Details
    ISSN: 1420-9071
    Keywords: Lepidoptera ; Noctuidae ; Agrotis ipsilon ; black cutworm ; juvenile hormone ; allatectomy ; pheromone reception ; sexual behaviour ; tenoxycarb ; KK-42
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In Lepidoptera, reproduction is linked to chemical communication between conspecific partners. When exposed to the female sex pheromone, males respond by exhibiting typical sexual behaviour which leads to mating. Here we show that presence of the juvenile hormone producing gland (corpora allata) of the male black cutworm,Agrotis ipsilon, is necessary for pheromone responsiveness. Allatectomized males do not show any sexual behaviour, although their antennal olfactory system is functional. Allatectomized males implanted with active corpora allata recover full pheromone receptivity. It is suggested that reproductive processes are synchronized in males and females through endocrine control; timing of the mating activity could serve as an adaptive strategy linked to the migratory behaviour of this species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923960
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  • 7
    Electronic Resource
    Electronic Resource
    Immunochemical similarities among the hemolymph juvenile hormone binding proteins of moths (1991)
    Springer
    Cellular and molecular life sciences 47 (1991), S. 945-948 
    Details
    ISSN: 1420-9071
    Keywords: Juvenile hormone ; Manduca sexta ; Lepidoptera ; immunotaxonomy ; monoclonal antibodies ; hemolymph
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The hemolymph from various species of moths was analyzed for cross-reactivity with a panel of six monoclonal antibodies made against the hemolymph juvenile hormone binding protein ofManduca sexta. With the exception of one antibody, the immunoreactivity was limited to the sphingid family. One monoclonal antibody cross-reacted with a number of lepidopteran species; however, families such as Noctuidae and Pyralidae, known to have high affinity, low molecular weight juvenile hormone binding proteins, did not cross-react. Immunological cross-reactivity withManduca sexta juvenile hormone binding protein in several primitive moth families supports the current model of phylogenetic relationships in the order Lepidoptera.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01929888
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  • 8
    Electronic Resource
    Electronic Resource
    Host-plant green-leaf volatiles synergize the synthetic sex pheromones of the corn earworm and codling moth (Lepidoptera) (1993)
    Springer
    Chemoecology 4 (1993), S. 145-152 
    Details
    ISSN: 1423-0445
    Keywords: pheromone synergists ; host-plant volatiles ; Lepidoptera ; Noctuidae ; Helicoverpa zea ; corn earworm ; Olethreutidae ; Cydia pomonella ; codling moth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The capture of adult male moths in female sex pheromone traps of two key agricultural pests, the corn earworm (Helicoverpa zea) and the codling moth (Cydia pomonella), is enhanced or synergized by a certain group of host-plant volatiles, the “green-leaf volatiles” (GLVs). Since female adults of both species call and release their sex pheromones while perched upon the leaves of their host-plants, the volatile constituents from the leaves of a number of host-plants were compared. Sex pheromone traps containing one of the prominent leaf volatiles of certainH. zea hosts, (Z)-3-hexenyl acetate, not only significantly increased the capture ofH. zea males but were preferred over traps baited only with sex pheromone. Similarly, traps baited with synthetic sex pheromome ofC. pomonella plus a blend of GLVs captured significantly more males than traps baited only with sex pheromone. Since male moths are not captured in traps baited only with these GLVs, it appears that these GLVs act as pheromone synergists which increase or enhance the attraction or arrestment of male moths in pheromone traps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01256549
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  • 9
    Electronic Resource
    Electronic Resource
    Green leaf volatiles enhance sex attractant pheromone of the tobacco budworm,Heliothis virescens (Lep.: Noctuidae) (1993)
    Springer
    Chemoecology 4 (1993), S. 175-177 
    Details
    ISSN: 1423-0445
    Keywords: green leaf volatiles ; cotton ; synergist ; behaviour ; sex attractant ; pheromone ; Lepidoptera ; Noctuidae ; Heliothis virescens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Components of the green leaf volatile complex (Z-3-hexenyl acetate andE-2-hexenyl acetate) were shown to enhance responses of tobacco budworm,Heliothis virescens, males to the sex attractant pheromone of conspecific females in the field. The results are discussed with regard to green leaf volatiles which enhance the attractant pheromone of a cohabiting species, and serve as attractants of a parasitoid of conspecific larvae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01256553
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  • 10
    Electronic Resource
    Electronic Resource
    Leaf surface compound fromBrassica oleracea (Cruciferae) induces oviposition byPieris brassicae (Lepidoptera: Pieridae) (1992)
    Springer
    Chemoecology 3 (1992), S. 39-44 
    Details
    ISSN: 1423-0445
    Keywords: oviposition ; kairomone ; host plant selection ; indole glucosinolates ; Cruciferae ; Brassica oleracea ; cabbage ; Lepidoptera ; Pieridae ; Pieris brassicae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Chemicals present on the surface of cabbage (Brassica oleracea L.) leaves were extracted by dipping these leaves for 3 s in dichloromethane followed by a 3 s dip in methanol. When offered in dual choice bioassays using green paper cards as a substrate, the methanol extract stimulated oviposition activity byPieris brassicae L. (Lepidoptera: Pieridae) females. The oviposition stimulant was isolated using medium pressure liquid chromatography, reversed-phase HPLC, ion-pair HPLC and ion exchange chromatography. Using1H-NMR spectroscopy, the stimulant could be identified as glucobrassicin (3-indolyl-methyl-glucosinolate). When pure glucobrassicin was offered at a dose identical to that in the crude methanol extract, butterflies did not discriminate between these two substrates in a dual choice test. It is argued that a high sensitivity for indole glucosinolates as host recognition factors may confer an adaptive value for these specialist crucifer feeders. The nutritional significance of their precursor tryptophan and the non-volatile nature of the aglycones formed upon enzymic hydrolysis in damaged tissues are proposed as properties of indole glucosinolates that contribute to this possible adaptive advantage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01261455
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