Forest Investment Account

Abstract of FIA Project 4236001

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Test of a Simplified Non-Host Volatile Blend as a Supplement to Verbenone in Protecting Lodgepole Pine from Attack by the Mountain Pine Beetle

Author(s): Borden, John
Subject: British Columbia, Ecology, Entomology, Forestry
Series: Forest Investment Account (FIA) - Land Base Investment Program - Innovative


In 40 x 40 m plots with a pheromone-baited tree in the centre, attack by the mountain pine beetle was significantly reduced when either a three-component non-host angiosperm bark volatile blend or the antiaggregation pheromone
verbenone were deployed at 16 points with 10 m centres. However, there was no addititive or synergistic effect of adding the non-host volatiles to verbenone. When verbenone plus the non-host volatile blend were deployed at 36 points with 10 m centres in 50 x 50 m blocks superimposed on permanent sampling plots maintained by Lignum Ltd., attack was held below 10% of available trees on eight of 10 plots. We recommend that in the future, non-host volatiles not be used operationally in combination with verbenone,and that the efficacy of verbenone be improved by using it in conjunction with pheromone-baited trees in a push-pull tactic.

For further information, please contact John Borden, Simon Fraser University (

Updated September 08, 2005 

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