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  • 1
    Electronic Resource
    Electronic Resource
    Comparative field studies of various traps and attractants of the olive fruit fly,Bactrocera oleae (1994)
    Springer
    Entomologia experimentalis et applicata 73 (1994), S. 145-150 
    Details
    ISSN: 1570-7458
    Keywords: Bactrocera oleae ; Tephritidae ; traps ; attractants ; pheromones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In the framework of an ongoing testing and refining process of a mass trapping method, using a combination of semiochemicals, for the control of the olive fruit fly,Bactrocera (Dacus) oleae, four trap designs, three trap colors, six different food attractants, and two pheromone formulations were compared under field conditions. No differences were observed between the trap designs and the food attractants tested. Trap color had a significant effect in preference tests only. Traps combining food attractants and pheromones attracted higher numbers of both male and female flies but the differences became statistically significant only in cases of low trap densities. Pheromones enclosed in cyclodextrenes were not as attractive as standard pheromone formulations. The findings of these tests allow a choice among trap types and semiochemicals for cost reduction and convenience, but not for enhancement of the efficacy of the method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02383420
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  • 2
    Electronic Resource
    Electronic Resource
    A sex attractant of the olive fruit fly, Dacus oleae and its biological activity under laboratory and field conditions (1977)
    Springer
    Entomologia experimentalis et applicata 21 (1977), S. 81-87 
    Details
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Flüchtige Substanzen von Laborzucht- und wilden Weibchen von Dacus oleae (Gmelin) wurden mit verschiedenen Methoden gewonnen; sie lockten Männchen derselben Art während der Stunden ihrer sexuellen Aktivität (Abenddämmerung) in Labor- und Feldversuchen an. Die Existenz eines flüchtigen Sexualpheromons bei dieser Art, bisher nur vermutet, wurde somit bewiesen. Labor- und Feldkäfigversuche zeigten eine Pheromon-Kommunikation zwischen Laborzucht- und wilden Insekten.
    Notes: Abstract Volatile substances collected by various methods from laboratory and wild female Dacus oleae (Gmelin) flies attracted males of the same species during the hours of sexual activity (dusk) in laboratory and field tests. The presence of an air-borne sex pheromone in this species, previously suspected, was thus verified. Laboratory and field cage tests showed pheromonal communication between laboratory-reared and wild insects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00300345
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  • 3
    Electronic Resource
    Electronic Resource
    Oviposition regulation inDacus Oleae by various olive fruit characters (1978)
    Springer
    Entomologia experimentalis et applicata 24 (1978), S. 387-392 
    Details
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Resume On a étudié l'effet d'un certain nombre de caractéristiques chimiques et physico-tactiles de la surface des olives sur la régulation de la ponte de populations naturelles et de laboratoire de la mouche des olives,Dacus oleae. On a constaté que c'étaient les stimuli chimiques qui avaient l'effet le plus important. On peut obtenir une inhibition de la ponte allant jusqu'à 100% si la surface du fruit a des propriétés chimiques défavorables. Ces stimuli chimiques sont perçus par des récepteurs antennaires et tarsaux. Le degré de rugosité de la surface a aussi un effet régulateur important. Ce caractère est perçu uniquement par des récepteurs antennaires. La dureté du fruit n'a aucun effet.
    Notes: Abstract The effect of some chemical and physico-tactile characters of the olive fruit surface were studied with respect to oviposition regulation of wild and laboratory-cultured olive fruit flies,Dacus oleae (Gmelin). It was found that chemical stimuli have the greatest effect. Up to 100% inhibition of oviposition can be obtained with unsuitable chemical properties of the fruit surface. These chemical stimuli are perceived by antennal and tarsal receptors. Fruit surface smoothness also has a significant regulatory effect. This character is perceived by antennal receptors only. Hardness of fruit has no effect at all.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02385090
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  • 4
    Electronic Resource
    Electronic Resource
    1,5,7-Trioxaspiro[5.5]undecane, a pheromone analog with high biological activity for the olive fruit fly,Dacus oleae (1989)
    Springer
    Journal of chemical ecology 15 (1989), S. 1057-1065 
    Details
    ISSN: 1573-1561
    Keywords: Olive fruit fly ; Dacus oleae ; Diptera ; Tephritidae ; pheromones ; attractants ; sex attractants ; pheromone analog ; 1,5,7-triox-aspiro[5.5]undecane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract l,5,7-Trioxaspiro[5.5]undecane, an analog of the major sex pheromone (olean) of the olive fruit fly, was synthesized via two different routes and tested for biological activity under laboratory and field conditions. In laboratory tests, its activity was comparable to that of olean, especially when a stabilizer or a high concentration was used. In field tests, its activity reached the level of olean only when a stabilizer and an open-type dispenser, which allows high rates of evaporation, were used. The residual activity of the analog dispensers did not exceed two weeks both under laboratory and field conditions compared to over four months for olean.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01015199
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  • 5
    Electronic Resource
    Electronic Resource
    A multicomponent female sex pheromone ofDacus oleae Gmelin: Isolation and bioassay (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 437-444 
    Details
    ISSN: 1573-1561
    Keywords: Pheromones ; sex attractants ; Dacus oleae ; Diptera ; Tephritidae ; olive fruit fly ; sex pheromones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The sex attractant pheromone produced by femaleDacus oleae Gmelin is a mixture of four compounds, two of which are found in the rectal gland and the other two elsewhere in the insect body. The ratio of these compounds in the pheromone blend was measured. Biological activity of all four compounds and their combinations was studied in lab and field cage tests. The most abundant compound in the mixture (55.7%) shows the highest biological activity. Recombination of all compounds significantly increases activity of the main compound.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00995766
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  • 6
    Electronic Resource
    Electronic Resource
    Sex-specific activity of (R)-(−)- and (S)- (+)-1,7-dioxaspiro[5.5]undecane, the major pheromone ofDacus oleae (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 1559-1568 
    Details
    ISSN: 1573-1561
    Keywords: Dacus oleae ; olive fruit fly ; Diptera ; Tephritidae ; pheromones ; enantiomers ; sex attractants ; sex-specific enantiomers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract 1,7-Dioxaspiro[5.5]undecane (olean), the major component of the female sex attractant pheromone blend of the olive fruit flyDacus oleae (Gmelin) was shown to be released as a racemate. The response of males and females to pure (R)-(−) and (S)-(+)-enantiomers was tested under laboratory and field conditions. Males in laboratory and field tests responded only to (R)-(−)-olean, which functions as a sex attractant. Females responded only to (S)-(+)-olean in laboratory tests but not in the field. There are indications that the latter enantiomer fuctions as a short-range arrestant throughout the day and as an aphrodisiac in the process of mating.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012372
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  • 7
    Electronic Resource
    Electronic Resource
    Male olive fruit fly attraction to synthetic sex pheromone components in laboratory and field tests (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 397-405 
    Details
    ISSN: 1573-1561
    Keywords: Dacus oleae ; olive fruit fly ; Diptera ; Tephritidae ; pheromones ; sex attractants ; multicomponent pheromones ; field tests of pheromones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Male olive fruit fly attraction to the four synthetic components of the female sex attractant pheromone was studied under laboratory and field conditions. In laboratory tests males responded to all four components tested separately. Component I, (1,7-dioxaspiro[5.5]undecane) was more attractive than any of the remaining three components alone, but a combination of all four was more attractive than component I alone. In field tests with polyethylene vials as pheromone dispensers, the complete mixture, although not statistically significant, was constantly more attractive to males than component I alone. A tendency of enhancement of attraction of component I by combining it with component II (α-pinene) or III (n-nonanal) was also observed. In field tests with rubber septa as pheromone dispensers only component I was attractive. Mixtures containing component I were also attractive but not more attractive than component I alone. Evaporation rate and ratio of components as they come out of the dispenser appear to be critical for male response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411425
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  • 8
    Electronic Resource
    Electronic Resource
    Biological activity of chemicals identified from extracts and volatiles of maleRhagoletis cerasi (1995)
    Springer
    Journal of chemical ecology 21 (1995), S. 1287-1297 
    Details
    ISSN: 1573-1561
    Keywords: Rhagoletis cerasi ; cherry fruit fly ; Diptera ; Tephritidae ; EAG ; volatiles ; extracts ; sex pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Fractions obtained by chromatographic separation of extracts and volatiles from maleRhagoletis cerasi flies were tested for biological activity on females under laboratory conditions. During the bioassays, the number of incoming flies as well as the time spent by individual flies on the area of stimulus were taken under consideration. Two distinct types of female behavior were observed, i.e., attraction and arrestant behavior. GC-MS analysis of biologically active fractions resulted in tentative identification of 75 compounds. EAG screening for 27 of these compounds was performed, and subsequent laboratory bioassays resulted in the confirmation of arrestant activity for various mixtures of eight fatty acids (octadecanoic, nonadecanoic, eicosatetraenoic, eicosapenaenoic, eicosaenoic, heneicosanoic, docosahexenoic, and docosanoic). Following EAG tests and laboratory bioassays, a possible mode of chemical communication of this species with sex pheromones is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027562
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