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Filtering by: Alternative title ssim PNW 560 Remove constraint Alternative title ssim: PNW 560 Advisor Roth, Lewis F. Remove constraint Advisor: Roth, Lewis F. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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Epidemiology of Lophodermella morbida in plantations of ponderosa pine in western Oregon

Creator:

Harvey, George M.

Abstract:

In 1967, Lophodermella morbida Staley and Bynum, a recently described hypodermataceous needle-cast fungus, became destructively epidemic in a knobcone pine (Pinus attenuata Lemm.) plantation in Del Norte County, California, and in several ponderosa pine (P. ponderosa Laws.) plantations in western and southwestern Oregon. This thesis presents information on this currently...

Resource Type:

Dissertation

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Laboratory, Corvallis, Oregon. (Hereafter referred to as PNW Station). 2 The Rocky Mountain and PNW
Simulation of population changes of western dwarf mistletoe on Ponderosa pine

Creator:

Strand, Mary Ann Sall, 1945-

Abstract:

Western dwarf mistletoe (Arceuthobium campylopodum Engelm. 1. campylopodum) is a parasite of ponderosa pine (Pinus ponderosa Laws. ). The objectives of this investigation are: (a) to formulate a mathematical description of the process of dwarf mistletoe disease spread in a pine forest, (b) to use this description to predict the...

Resource Type:

Dissertation
The relation of cover to the distribution of Armillaria mellea in a Ponderosa pine forest

Creator:

Adams, David Howard

Abstract:

Numerous isolates of Armillaria mellea were obtained within a 250 by 450 foot Study Area in a ponderosa pine plantation in central Oregon. These isolates were recovered from roots of armillaria-killed young-growth pine, from large stumps of the former pine overstory, including roots away from the stump proper, and from...

Resource Type:

Dissertation
Epidemiological insights into Armillaria mellea root rot in a managed Ponderosa pine forest

Creator:

Shaw, Charles G. (Charles Gardner) 1948-

Abstract:

Root rot of ponderosa pine caused by Armillaria mellea was studied in a pine forest that had been under management for 30 years in Klickitat County, Washington. Information sources included disease survey, detailed observation and description of specific disease situations, and examination of roots in situ and removed. Roughly circular...

Resource Type:

Dissertation

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Academic Affiliation

Botany2
Botany2
Botany and Plant Pathology1

Advisor

Roth, Lewis F.[remove]4

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1972 to 1975

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Creator

Adams, David Howard1
Harvey, George M.1
Shaw, Charles G. (Charles Gardner) 1948 1
Strand, Mary Ann Sall, 1945 1

Date

Date range begin – Date range end

Current results range from 1972 to 1974

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Decade

1970-19794

Degree Field

Botany3
Botany and Plant Pathology1

Degree Level

Doctoral4

Degree Name

Doctor of Philosophy (Ph.D.)4

Language

English [eng]4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No4

Resource Type

Dissertation[remove]4

Rights Statement

Copyright Not Evaluated4

Subject

Pine -- Diseases and pests2
Dwarf mistletoes1
Forest ecology1

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