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Title: Effect of verbenone on attraction of predatory and woodboring beetles (Coleoptera) to kairomones in Lodgepole pine forests

Author: Lindgren, B. Staffan; Miller, Daniel R.;

Date: 2002

Source: Environmental Entomolgy 31(5): 766-773

Publication Series: Miscellaneous Publication

Description: The response of bark beetle predators and woodboring beetles to the bark beetle anti-aggregation pheromone, verbenone, was tested in the field with multiple-funnel traps baited with attractant kairomones. Catches of the predators Thanasimus undatulus (Say), Enoclerus sphegeus (F.), Enocleris lecontei (Wolcott) (Coleoptera: Cleridae) , and Lasconotus complex LeConte (Coleoptera: Colydiidae) declined significantly with increasing release rates of verbenone. Lasconotus subcostulatus Kraus, and Corticeus praetermissus (Fall) (Coleoptera: Tenebrionidae) (in two of three experiments), showed no significant response to verbenone. In a third experiment, catches of C. praetermissus increased with verbenone dose. Likewise, catches of the striped ambrosia beetle, Trypodendron lineatum (Olivier) (Coleoptera: Scolytidae), increased with verbenone dose in one experiment, but there was no effect in two other experiments. Verbenone had no effect on the response of Spondylis upiformis Mannerheim (Coleoptera: Cerambycidae). We hypothesize that predators specializing on early successional bark beetles are repelled by verbenone since this compound indicates a latdstage attack. Generalist predators and woodborers either do not respond to verbenone at all, or they may be attracted by it.

Keywords: Kairomone, scolytidae, Trypodendron lineatum, Cleridae, Thanasimus undatulus, Enoclerus sphegeus

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Lindgren, B. Staffan; Miller, Daniel R. 2002. Effect of verbenone on attraction of predatory and woodboring beetles (Coleoptera) to kairomones in Lodgepole pine forests. Environmental Entomolgy 31(5): 766-773


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