Investigation of Host Selection by Mountain Pine Beetle (Dendroctonus ponderosae) Hopk. in Lodgepole Pine (Pinus contorta) Dougl.


Thomas J. Eager

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Lodgepole pines Pinus contorta (Douglas) were treated by girdling to assess the response by an endemic population of mountain pine beetle Dendroctonus ponderosas (Hopkins), (Coleoptera: Scolytidae). Capture in 'sticky traps' indicated that the beetles were attracted while in flight towards the wounded trees. A significant difference in the landing rates of bark beetles between the treated and untreated trees indicated that the beetles were able to distinguish wounded from non-wounded trees while still in flight. Pressure chamber readings demonstrated that water stress developed in the girdled trees when compared to the non-girdled trees.


This item is a thesis published by a student who attended Utah State University. Abstract can be accessed through the remote link. Fulltext not available online.

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