Index Catalog // ScholarsArchive@OSU

Distribution and prediction of Swiss needle cast of Douglas-fir in coastal Oregon

Creator:: Rosso, Pablo H.
Abstract:: This study was directed to improve our understanding of the ecology of Swiss needle cast (SNC) of Douglas-fir, a disease that produces extensive damage to forests and plantation in the coastal region of Oregon and Washington. A disease prediction model for the coastal area of Oregon was built by establishing...
Resource Type:: Dissertation
Full Text:: of Swiss Needle Cast of Douglas-Fir in Coastal Oregon. Abstract approved: Everett M. Han' en This

Epidemiology and population biology of Inonotus tomentosus as a pathogen of forests of British Columbia

Creator:: Lewis, Katherine JoAnn
Abstract:: The root disease fungus Inonotus tomentosus, common in the old growth boreal forests of British Columbia, poses a threat to the health of second growth forests established on sites with a previous history of root disease. Colonized stumps occur in groups of 1 to 6; the groups are clumped within...
Resource Type:: Dissertation
Full Text:: British C9Ilumbia. . A Abstract approved: < Redacted for Privacy Dr. Everett M. Hansen The root disease

Understory response to tree harvesting in pinyon-juniper woodlands

Creator:: Everett, Richard L.
Abstract:: Understory species associations and their association with tree species were examined on three intensively studied stands. We studied the chronosequence of understory species associated with different aged singleleaf pinyon (Pinus monophylla Torr. and Frem.) trees. Mid- to late pinyon-juniper understory succession was found to be more spatial than floristic in...
Resource Type:: Dissertation
Full Text:: Woodlands AN ABSTRACT OF THE THESIS OF Richard L. Everett for the degree of Doctor of Philosophy in

Temperature effects on the growth of Douglas-fir seedlings

Creator:: Wommack, Donald Everett
Abstract:: This study was undertaken to determine the effects of different chilling treatments during the dormant season upon growth of Douglas-fir seedlings0 In addition it was planned to determine whether seedlings native to various geographic areas differ in their chilling requirements0 The hypotheses were advanced, based on previous studies, that chilling...
Resource Type:: Dissertation
Full Text:: DONALD EVERETT WOMMACK A THESIS submitted to OREGON STATE UNIVERSITY in partial. ful.fill.ment of the

Taxonomy and evolution of the Orthotyline genus Lopidea (Heteroptera: miridae)

Creator:: Asquith, Adam
Abstract:: The genus Lopidea Uhler is revised for America north of Mexico. The relationship of Lopidea to other orthotyline genera is discussed and it is proposed that the genus Ilnacora Reuter is the sister group of Lopidea. Forty-eight species of Lopidea are recognized in North America, one of which is described...
Resource Type:: Dissertation
Full Text:: . I also wish to thank Dr. Donald Zobel and Dr. Arnold Appleby for serving on my committee and for

AppleMgr, a prototype decision aid for apple pest management

Creator:: Haley, Sue
Abstract:: Computer decision aids can help integrate and apply diverse sources of information and expertise to problems of integrated pest management (IPM) in agriculture and forestry. AppleMgr combines a rule-based expert system with databases and spreadsheets in a prototype decision aid intended to be expanded and modified for use by extension...
Resource Type:: Dissertation
Full Text:: portions of AppleMgr. My committee members Arnold Appleby, Ralph Berry, Brian Croft, Fred Rickson and

Guide groups : an evaluation of educational innovation in a secondary school

Creator:: Erickson, John William
Abstract:: Purpose of the Study: This study was undertaken as a result of interest in the introduction of guide groups into the operation of secondary schools. Particularly when viewed from the historical perspective of the times in which it was initiated, the guide group concept offers an opportunity to examine the...
Resource Type:: Dissertation
Full Text:: Osibov, Edwin L. Anderson, Arnold W. Flath, William A. Kline, and William G. Robbins. Although

Quantification of state-and-transition model components utilizing long-term ecological response data following one-seed juniper treatment on a deep sand savannah ecological site

Creator:: Shaver, Patrick L.
Abstract:: A proposed state-and-transition model (STM) for the Deep Sand Savannah ecological site in central New Mexico was developed using historical data and expert knowledge. This STM was tested utilizing data from short and long term one-seed juniper (Juniperus monosperma (Engelm.) Sarg.) control experiments initiated in 1981 and 1985. Utilizing data...
Resource Type:: Dissertation
Full Text:: and production (Jameson 1962, Arnold 1964, Arnold et al. 1964, Jameson 1967, Jameson 1970, Clary and

A synthesis of 6-n-propyl-7-methyltetralin-5-C¹⁴

Creator:: Odell, Norman Raymond
Resource Type:: Dissertation
Full Text:: the objective of testing the nature of the Jacobsen rearrangement suggested by Arnold and Barnes (3

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

Creator:: Johnston, James D.
Abstract:: The application of modern land management practices beginning at the turn of the 20th century is widely believed to have dramatically transformed forest landscapes of the inland Pacific Northwest. Restoring historical conditions to make forests resilient to future climate and disturbance regimes is a major goal of federal forest managers....
Resource Type:: Dissertation
Full Text:: . 2014, Hagmann et al. 2013, Everett et al. 2008, Perry et al. 2004, Hessburg and Agee 2003, Covington

ScholarsArchive@OSU

Distribution and prediction of Swiss needle cast of Douglas-fir in coastal Oregon

Epidemiology and population biology of Inonotus tomentosus as a pathogen of forests of British Columbia

Understory response to tree harvesting in pinyon-juniper woodlands

Temperature effects on the growth of Douglas-fir seedlings

Taxonomy and evolution of the Orthotyline genus Lopidea (Heteroptera: miridae)

AppleMgr, a prototype decision aid for apple pest management

Guide groups : an evaluation of educational innovation in a secondary school

Quantification of state-and-transition model components utilizing long-term ecological response data following one-seed juniper treatment on a deep sand savannah ecological site

A synthesis of 6-n-propyl-7-methyltetralin-5-C¹⁴

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

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