cis-Verbenol: an Aggregation pheromone for the Mountain Pine Beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae)

Daniel R. Miller, Jean P. Lafontaine

Abstract


cis-Verbenol increased catches of male mountain pine beetles, Dendroctonus ponderosae Hopkins, to multiple-funnel traps baited with myrcene and exo-brevicomin. cis-Verbenol had no effect on the response of males to traps baited with myrcene, exo-brevicomin and trans-verbenol. In contrast, cis-verbenol increased catches of female D. ponderosae to semiochemical-baited traps irrespective of the absence or presence of trans-verbenol. Our results demonstrate that cis-verbenol is an aggregation pheromone for D. ponderosae and that the combination of cis-and trans-verbenol elicits sex-specific responses.

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