title: Dendroctonus pseudotsugae hopkins (Coleoptera: Scolytidae): Production of and response to enantiomers of 1-methylcyclohex-2-en-1-ol.
abstract: Female Douglas-fir beetles,Dendroctonus pseudotsugae, produced an average 45∶55 mixture of the (S)-(-)- and (R)-(+)-enantiomers of 1-methylcyclohex-2-en-1-ol (MCOL). The (S)-(-)∶(R)-(+) ratio of 3-methylcyclohex-2-en-1-ol (seudenol) produced by this population of females was 34∶66. Lindgren funnel traps baited with (R)-(+)-MCOL attracted significantly more males and females than (S)-(-)-MCOL-baited traps, which captured significantly more beetles than unbaited controls. The combined effect of the enantiomers was additive, rather than synergistic. Either enantiomer of MCOL increased catches by frontalin-baited traps. Racemic MCOL can be used for trapping Douglas-fir beetles in south-central British Columbia.
authors.affiliation: Phero Tech Inc., 7572 Progress Way RR5, V4G 1E9, Delta, B.C., Canada.
authors.forename: B S
authors.initials: BS
authors.lastname: Lindgren
authors.forename: G
authors.initials: G
authors.lastname: Gries
authors.forename: H D
authors.initials: HD
authors.lastname: Pierce
authors.forename: K
authors.initials: K
authors.lastname: Mori