title: Sex-specific production of ipsdienol and myrcenol byDendroctonus ponderosae (Coleoptera: Scolytidae) exposed to myrcene vapors.
abstract: Male mountain pine beetles,Dendroctonus ponderosae Hopkins, produced ipsdienol [97.0% ± 0.3S-(+)] and myrcenol (90.3% ± 4.0E) when exposed to myrcene vapors. Females which were exposed to myrcene vapors did not produce any ipsdienol, but did produce low levels of myrcenol (98.0% ± 0.7E). Neither sex produced detectable levels of ipsdienol or myrcenol when fed for 24 hr on lodgepole pine,Pinus contorta var.latifolia Engelmann. The sex-specific conversion of myrcene to ipsdienol and myrcenol suggests that these compounds may have behavioral significance within the species. In addition, the S-(+)-ipsdienol produced by maleD. ponderosae probably functions as a repellent allomone againstIps pini (Say).
authors.affiliation: Department of Biological Sciences, Centre for Pest Management, Canada.
authors.forename: D W
authors.initials: DW
authors.lastname: Hunt
authors.forename: J H
authors.initials: JH
authors.lastname: Borden
authors.forename: H D
authors.initials: HD
authors.lastname: Pierce
authors.forename: K N
authors.initials: KN
authors.lastname: Slessor
authors.forename: G G
authors.initials: GG
authors.lastname: King
authors.forename: E K
authors.initials: EK
authors.lastname: Czyzewska