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  • 1
    Electronic Resource
    Electronic Resource
    Identification of a female-produced sex pheromone of the western corn rootworm (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 545-556 
    Details
    ISSN: 1573-1561
    Keywords: Chrysomelidae ; Diabrotica ; western corn rootworm ; northern corn rootworm ; Mexican corn rootworm ; sex pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A sex pheromone has been isolated and identified from virgin females of the western corn rootworm (WCR),Diabrotica virgifera virgifera LeConte. The synthesized compound, racemic 8-methyl-2-decanol propanoate, was equal in attraction to the natural pheromone when tested in the field as a trap bait against three taxa ofDiabrotica known to respond to pheromone extracts from female WCR. Five taxa (D. virgifera virgifera; D. virgifera zeae Krysan and Smith, Mexican corn rootworm;D. longicornis barberi Smith and Lawrence, northern corn rootworm;D. longicornis longicornis (Say); andD. porracea Harold) were attracted to traps baited with 8-methyl-2-decanol propanoate. The response of male northern corn rootworms (NCR) in the field peaked at a relatively low concentration of 8-methyl-2-decanol propanoate and then was severely reduced at the higher concentrations tested. Conversely, the response of male WCR in the field continued to increase up to the highest dose tested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987802
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  • 2
    Electronic Resource
    Electronic Resource
    Response of northern corn rootworm,Diabrotica barberi Smith and Lawrence, to stereoisomers of 8-methyl-2-decyl propanoate (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 21-26 
    Details
    ISSN: 1573-1561
    Keywords: Chrysomelidae ; Diabrotica barberi ; northern corn root-worm ; sex pheromone ; stereospecificity ; inhibition ; enantiomer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The four stereoisomers of 8-methyl-2-decyl propanoate were tested in South Dakota for attractiveness to the northern corn rootworm,Diabrotica barberi Smith and Lawrence (NCR). Only the 2R,8R configuration was attractive to the NCR. Inhibition of the NCR response to 2R,8R occurred when either the 2S,8R or 2S,8S isomers were components of the pheromone source. The 2R,8S configuration elicited no behavioral activity in the NCR.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987600
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  • 3
    Electronic Resource
    Electronic Resource
    Response ofDiabrotica virgifera virgifera, D. v. Zeae, andD. porracea to stereoisomers of 8-methyl-2-decyl propanoate (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1123-1131 
    Details
    ISSN: 1573-1561
    Keywords: Coleoptera ; Chrysomelidae ; Diabrotica ; western corn rootworm ; Mexican corn rootworm ; sex pheromone ; stereospecificity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The four stereoisomers of 8-methyl-2-decyl propanoate were tested in the United States and Mexico for attractiveness toDiabrotica virgifera virgifera LeConte, the western corn rootworm,D. v. zeae Krysan and Smith, the Mexican corn rootworm, andD. porracea Harold. Males ofD. v. virgifera andD. v. zeae responded strongly to the (2R,8R)-isomer and secondarily to (2S,8R), whileD. ponacea responded exclusively to the (2S,8R)-isomer. The (2S,8S)- and (2R,8S)-isomers were inactive in all tests. Synergism or inhibition was not detected when various mixtures of the isomers were tested withD. v. virgifera. These phenomena were not tested withD. v. zeae andD. ponacea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987518
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of a female-produced sex pheromone from the southern corn rootworm,Diabrotica undecimpunctata howardi Barber (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 1363-1375 
    Details
    ISSN: 1573-1561
    Keywords: Coleoptera ; Chrysomelidae ; Diabrotica ; southern corn rootworm ; spotted cucumber beetle ; western spotted cucumber beetle ; sex pheromone ; 10-methyl-2-tridecanone ; ketone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A sex pheromone has been isolated and identified from virgin females of the southern corn rootworm (SCR),Diabrotica undecimpunctata howardi Barber. The synthesized compound, 10-methyl-2-tridecanone was shown to be attractive to males of the SCR, and also to males ofD. u. undecimpunctata Mannerheim, the western spotted cucumber beetle (WSCB), and ofD. u. duodecimnotata in Mexico. Males of both the SCR and the WSCB strongly preferred theR over theS enantiomer. The resolved enantiomers were not tested againstD. u. duodecimnotata.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994805
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