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  • 1
    Electronic Resource
    Electronic Resource
    Chemical attractants for the smaller european elm bark beetleScolytus multistriatus (Coleoptera: Scolytidae) (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 115-124 
    Details
    ISSN: 1573-1561
    Keywords: aggregation pheromone ; α-cubebene ; 2,4-dimethyl-5-ethyl-6 ; 8-dioxabicyclo(3.2.1)octane ; Dutch elm disease ; elm bark beetle ; insect attractant ; 4-methyl-3-heptanol ; multilure ; multistriatin ; Scolytus multistriatus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The secondary attractant for the smaller European elm bark beetleScolytus multistriatus is a mixture of three compounds: (-)4-methyl-3-heptanol(I); 2,4-dimethyl-5-ethyl-6,8-dioxabicyclo(3.2.1) octane (II); and (−)α-cubebene (III). The novel structure assigned to compound II was confirmed by synthesis. All three compounds were isolated from the volatile compounds collected on Porapak Q by aerating elm bolts infested with virgin female beetles. The GLC fractionations were monitored by two laboratory bioassays. Individually, each compound was inactive in the laboratory bioassays, but a mixture of all three showed activity nearly equivalent to that of the of the original Porapak extract. A mixture of synthetic I and II plus natural III (from cubeb oil) was highly attractive to beetles in preliminary field tests.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987724
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  • 2
    Electronic Resource
    Electronic Resource
    Laboratory and field tests with the synthetic sex pheromone of threeMatsucoccus 1 pine bast scales (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 89-102 
    Details
    ISSN: 1573-1561
    Keywords: Matsucoccus resinosae ; M. thunbergianae ; M. matsumurae ; Coccoidea ; Margarodidae ; scale insects ; pine bast scales ; sex pheromone ; (2E,4E)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one ; matsuone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Matsunone, (2E,4E)-4.6,10,12-tetramethyl-2,4-tridecadien-7-one, is the primary sex pheromone ofMatsucoccus resinosae, M. thunbergianae, andM. matsumurae. The synthetic compound was tested in the laboratory and in field tests with all three species, and significantly more males responded to synthetic matsuone than to controls. The attraction of synthetic matsuone to males in field tests was not significantly different from that of virgin females at the same matsuone release rate. An analog of matsuone previously shown to be biologically active was also tested in the laboratory withM. resinosae andM. thunbergianae, and field tested withM. resinosae. The active analog required a dose approximately 100 times greater than matsuone to yield maximum laboratory bioassay response, and in field tests, attraction was not significantly different from controls at doses at which matsuone was significantly attractive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994424
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  • 3
    Electronic Resource
    Electronic Resource
    Cross-attraction between two species ofMatsucoccus (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 609-617 
    Details
    ISSN: 1573-1561
    Keywords: Sex pheromone ; interspecific attraction ; red pine scale ; Matsucoccus resinosae ; Matsucoccus n. sp. ; Pinus resinosa ; Pinus thunbergiana ; Homoptera ; Coccoidea ; Margarodidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In laboratory bioassays, males ofMatsucoccus resinosae fromPinus resinosa in New York andMatsucoccus n. sp. fromPinus thunbergiana in Korea were strongly attracted to crude hexane extracts ofM. resinosae females, andM. resinosae males responded strongly to extracts ofMatsucoccus n. sp. females. Males of the two species responded similarly to gas chromatographic fractions and subfractions of a pentane extract ofM. resinosae females. Sex pheromones of these two species appear to be the same or very similar.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012096
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  • 4
    Electronic Resource
    Electronic Resource
    Collection on Porapak Q of the aggregation pheromone ofScolytus multistriatus (Coleoptera: Scolytidae) (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 149-160 
    Details
    ISSN: 1573-1561
    Keywords: aggregation pheromone ; Scolytus multistriatus ; Porapak ; Ulmus ; elm bark beetle ; volatile attractants
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The attractive volatiles in the air around the virgin female of the smaller European elm bark beetle,Scolytus multistriatus (Marsham), tunneling in elm logs can be collected by passing the air through a column of Porapak Q. These volatiles can be removed from the Porapak by Soxhlet extraction with hexane, yielding an extract that is attractive to in-flight beetles in the field. GLC analyses of this extract and an extract of virgin female frass indicate that the aeration extract contains active chemicals that are not in the extract of frass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987727
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