Short-range horizontal disruption by verbenone in attraction of mountain pine beetle (Coleoptera: Scolytidae) to pheromone-baited funnel traps in stands of lodgepole pine
Abstract
Verbenone interrupted the attraction of mountain pine beetle, Dendroctonus ponderosae Hopkins, to baited multiple-funnel traps at a distance of < 4m. Catches of beetles in traps placed > or = 4 m from traps with verbenone wcre not significantly lower than catches in control traps. These results are consistent with the short-range phenomenon of "switching" exhibited by mountain pine beetle in the formation of a spot infestation in stands of lodgepole pine.
Keywords: Dendroctonus ponderosae; Coleoptera; Scolytidae; verbenone;
antiaggregation pheromone; multiple funnel trap
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