Title: Seasonal flight pattern of the western balsam bark beetle, Dryocoetes confusus Swaine (Coleoptera: Curculioniae), in Central British Columbia
Abstract: Seasonal flight pattern of the western balsam bark beetle, Dryocoetes confusus Swaine, in stands of subalpine fir, Abies lasiocarpa (Hook) Nutt., in north-central British Columbia was monitored for three years using multiple-funnel traps baited with (±)- exo -brevicomin. There were two major flight periods per year, the first commencing in mid- to late June, and the second occurring in mid- to late August. The first flight was predominantly males, while the second flight was composed primarily of females, probably reemerged parent adults. Little flight occurred until within-stand temperatures exceeded 15oC. Traps placed 6 m above ground caught 4 times as many beetles as traps placed 2 m above ground. Our results indicate that semio-chemical-based manipulation of the western balsam bark beetle should be implemented by early May.
Publication Year: 2014
Publication Date: 2014-05-27
Language: en
Type: article
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Cited By Count: 3
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