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

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.

Identiferoai:union.ndltd.org:UTAHS/oai:digitalcommons.usu.edu:etd-8399
Date01 May 1986
CreatorsEager, Thomas James
PublisherDigitalCommons@USU
Source SetsUtah State University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceAll Graduate Theses and Dissertations
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