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PRIMARY ATTRACTION OF IPS LATIDENS (LECONTE) AND HYLASTES GRACILIS LECONTE (COLEOPTERA: SCOLYTIDAE) TO HIGH-GIRDLED LODGEPOLE PINE, PINUS CONTORTA VAR. LATIFOLIA ENGELMANN

Published online by Cambridge University Press:  31 May 2012

D.R. Miller ,
J.L. Madden  and
J.H. Borden
D.R. Miller
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
J.L. Madden
Affiliation:
Faculty of Agricultural Science, University of Tasmania, Hobart, Tasmania, Australia
J.H. Borden
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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Abstract

In the absence of secondary attraction, 2 species of Scolytidae, Ips latidens (LeConte) and Hylastes gracilis LeConte, showed significant preference while in flight for high-girdled over non-girdled lodgepole pines, Pinus contorta var. latifolia Engelmann. In contrast, beetles in 2 genera of Elateridae, Ampedus and Ctenicera, showed significant preference for non-girdled over high-girdled lodgepole pines. Beetles in 12 other families, as well as other scolytids and elaterids, did not show any significant preference or aversion to high-girdled trees. This is the first clear demonstration of primary attraction for a North American Ips species and the second for an Hylastes species.

Résumé

En l’absence d’attraction secondaire, 2 espèces de Scolytidae, Ips latidens (LeConte) et Hylastes gracilis LeConte ont montré une préférence significative, en vol, pour des pins Pinus contorta var. latifolia Engelmann ceinturés haut plutôt que non ceinturés. A l’inverse, des coléoptères représentant 2 genres d’Elateridae, Ampedus et Ctenicera, ont montré une préférence significative pour des pins non ceinturés plutôt que ceinturés haut. Des coléoptères représentant 12 autres familles ainsi que d’autres scolytidés et élatéridés n’ont pas montré de préférence ou d’aversion pour les pins ceinturés haut. Il s’agit de la première démonstration d’attraction primaire chez une espèce nord-américaine d’Ips, et de la seconde pour une espèce d’Hylastes.

Type
Articles
Information
The Canadian Entomologist , Volume 118 , Issue 2 , February 1986 , pp. 85 - 88
Copyright
Copyright © Entomological Society of Canada 1986

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