Journal of Chemical Ecology

, Volume 18, Issue 9, pp 1583–1593

Olfactory recognition of nonhosts aspen and birch by conifer bark beetlesTomicus piniperda andHylurgops palliatus

  • L. M. Schroeder
Article

Abstract

The field response ofTomicus piniperda (L.) andHylurgops palliatus (Gyll.) (Coleoptera: Scolytidae) to the attractant ethanol in combination with volatile wood constituents released from the nonhost tree speciesPopulus tremula L. (Salicaceae) andBetula pendula Roth (Betulaceae) was studied using flight barrier traps. The attraction of both species decreased when aspen or birch wood was added to the ethanol bait. The same was true forRhizophagus depressus (F.) (Coleoptera: Rhizophagidae), a predatory species associated with conifer bark beetles.Glischrochilus quadripunctatus (L-),Epuraea bickhardti St.-Claire Deville,E. unicolor (Oliv.) (Coleoptera: Nitidulidae), andRhizophagus parvutus (Payk.) (Coleoptera: Rhizophagidae) were caught in higher numbers in traps baited with both ethanol and wood of aspen or birch than in traps baited with ethanol alone. In a separate experiment, landings ofT. piniperda andH. palliatus on nonhosts (black plastic tubes) were demonstrated with sticky traps.

Key words

Tomicus piniperda Hylurgops palliatus Rhizophagus depressus R. parvulus Glischrochilus quadripunctatus Epuraea bickhardti E. unicolor Coleoptera Scolytidae Rhizophagidae Nitidulidae ethanol nonhost volatiles Populus tremula Betula pendula olfactory orientation attraction decreased attraction 

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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • L. M. Schroeder
    • 1
  1. 1.Division of Forest EntomologySwedish University of Agricultural SciencesUppsalaSweden

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