Canadian Forest Service Publications

The response of mountain pine beetle (Dendroctonus ponderosae) to lodgepole pine trees baited with verbenone and exo-brevicomin. 1992. Shore, T.L.; Safranyik, L.; Lindgren, B.S. Journal of Chemical Ecology 18(4): 533-541.

Year: 1992

Issued by: Pacific Forestry Centre

Catalog ID: 3156

Language: English

Availability: Order paper copy (free)

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Abstract

exo-brevicomin, a multifunctional pheromone of the mountain pine beetle, Dendroctonus ponderosae, was tested at release rates of 0.5 and 2.5 mg/day alone and in combination with the antiaggregation pheromone verbenone against unbaited controls. Significantly more lodgepole pine Pinus contorta var. latifolia trees were attacked, and at higher densities, with both release rates of exo-brevicomin than with all other treatments. Verbenone significantly reduced the response of mountain pine beetles to exo-brevicomin. Verbenone alone did not reduce the number of trees attacked by mountain pine beetle or the attack density when compared to the unbaited controls.