Abstract

Host recognition and aggregation behaviour in the black spruce beetle, Hylastes cunicularius Erichson, were studied in choice experiments in the laboratory. The beetles tended to aggregate. Aggregation occurred at host material or at beetles and was independent of the sex of the beetles. Hidden host material was found by active host orientation. The beetles were attracted by several conifer species. In some experiments the beetles preferred the main host, Norway spruce, but Scots pine was also readily accepted. Sections of roots were chosen more often than stem sections. Fresh cuts on the host material enhanced attraction. No evidence was found to indicate the presence of an aggregation pheromone.

Published in

Journal of Applied Entomology
1991, Volume: 112, number: 1, pages: 11-18
Publisher: WILEY-BLACKWELL

SLU Authors

• Eidmann, Hubertus

  • Department of Plant and Forest Protection, Swedish University of Agricultural Sciences
    

• Lindelöw, Åke

  • Department of Plant and Forest Protection, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Zoology
Ecology
Forest Science


Publication identifier

DOI: https://doi.org/10.1111/j.1439-0418.1991.tb01022.x

Permanent link to this page (URI)

https://res.slu.se/id/publ/68803