Date of Award:
5-1986
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Wildland Resources
Department name when degree awarded
Forest Resources
Committee Chair(s)
Michael J. Jenkins
Committee
Michael J. Jenkins
Committee
James Long
Committee
Neal Van Alfen
Abstract
Lodgepole pines Pinus contorta (Douglas) were treated by girdling to assess the response by an endemic population of mountain pine beetle Dendroctonus ponderosae (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 girded trees when compared to the non-girdled trees.
Checksum
028b327ebc61efe7365c2be31e764563
Recommended Citation
Eager, Thomas James, "Investigation of Host Selection by Mountain Pine Beetle (Dendroctonus ponderosae) Hopk. in Lodgepole Pine (Pinus contorta) Dougl." (1986). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 7300.
https://digitalcommons.usu.edu/etd/7300
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