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  • Bactrocera oleae  (1)
  • Carpophilus davidsoni  (1)
  • Calcium carbonate
  • Springer  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Chemistry of fruit flies: Nature of glandular secretion and volatile emission ofBactrocera (bactrocera) cacuminatus (Héring) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 485-495 
    Details
    ISSN: 1573-1561
    Keywords: Bactrocera cacuminatus ; Bactrocera oleae ; Diptera ; Tephritidae ; olive fly ; spiroacetal ; ketoalcohol ; chirality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The major component of the rectal glandular extract and volatile emission of maleBactrocera cacuminatus is racemic 1,7-dioxaspiro[5.5]undecane. l-Hydroxy-5-nonanone as its open chain form, together with 6-n-butyl-3,4-dihydro-2H-pyran are minor components. 1,7-Dioxaspiro[5.5]undecan-4-ol is present at a low level and is shown to be exclusively the diastereomer with an equatorial hydroxy group by comparison with synthesized samples of both epimers. Examination of the trifiuoroacetate by chiral gas chromatography has established the (4S,6S) stereochemistry (ca. 80% ee). The presence of 1,7-dioxaspiro[5.5]undecan-3-ol, or its isomerization product, 1,6-dioxaspiro[4.5]decan-2-ylmethanol, could not be confirmed. Trapping of the volatiles released by sexually mature male flies at dusk revealed that a number of the glandular components described above are released at mating time. Reexamination of the glandular secretion of sexually mature female olive flies (B. oleae) has failed to confirm the presence of any 1,7-dioxaspiro[5.5]undecanols, with the only volatile component (other than fatty acids) being 1,7-dioxaspiro[5.5]undecane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994347
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mass-trapping ofCarpophilus spp. (Coleoptera: Nitidulidae) in stone fruit orchards using synthetic aggregation pheromones and a coattractant: Development of a strategy for population suppression (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 1541-1556 
    Details
    ISSN: 1573-1561
    Keywords: Carpophilus mutilatus ; Carpophilus davidsoni ; Carpophilus hemipterus ; Coleoptera ; Nitidulidae ; aggregation pheromones ; mass-trapping ; stone fruit ; population suppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Experiments were conducted in southern New South Wales to evaluate the potential of mass-trapping using synthetic aggregation pheromones and a coattractant as a control option forCarpophilus spp. in stone fruit orchards. A cordon of 54 pipe and 54 funnel traps (one trap of each type per perimeter tree) baited with pheromones ofC. mutilatus andC. davidsoni and coattractant (fermenting bread dough) was maintained around an apricot orchard for three weeks prior to harvest. The incidence ofCarpophilus spp. in ripe fruit in the center of the orchard was significantly reduced compared to a nearby orchard or the perimeter trees containing traps. A cordon of 16 water-filled Magnet funnel traps baited with pheromones ofC. mutilatus andC. davidsoni and coattractant was placed around a 9 × 9 block of trees in a peach orchard (single traps on alternate perimeter trees). This trapping regime significantly reduced infestation of fruit baits byCarpophilus spp. in the center tree over a period of six weeks compared to fruit baits in trap trees and distant (100 m) control trees. However, cordons of eight pheromone traps within 1 m of single trees or a single trap adjacent to a tree increasedCarpophilus spp. infestation of fruit baits by up to 7.5 × compared to trees without pheromone traps. Mass-trapping based on perimeter positioning of pheromone traps (at a yet to be determined distance from protected trees) appears to show potential as a control strategy forCarpophilus spp. in stone fruit orchards during fruit ripening and harvest but traps too close to trees must be avoided. Development of a strategy for population suppression is discussed with respect to trap type, efficacy, positioning, and density; pheromone and coattractant delivery systems; and orchard sanitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027730
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    Paper (German National Licenses)
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