Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Advisor Williams, Daniel P. Committee Member Anderson, N. H. Language English [eng]

Life table analysis of Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) populations

Creator:

Howse, Gordon M.

Resource Type:

Dissertation

Full Text:

ANALYSIS OF DOUGLAS-FIR BEETLE (DENDROCTONUS PSEUDOTSUGAE HOPK.) POPULATIONS Redacted for Privacy W. P
Population dynamics of the Douglas-fir cone moth, Barbara colfaciana (Kft.) (Lepidoptera:Olethreutidae)

Creator:

Nebeker, T. Evan

Abstract:

A population of the Douglas-fir cone moth, Barbara colfaxiana (Kft. ), was studied on the Buckhead Seed Production Area, Oakridge, Oregon, during 1971 and 1972. A method of estimating cone and insect populations is presented. Factors contributing to the mortality of B. colfaxiana are discussed, with resinosis being the critical...

Resource Type:

Dissertation

Full Text:

: OLETHR EUTIDAE) Abstract approved; Redacted for Privacy William P. Agel A population of the Douglas