Index Catalog // ScholarsArchive@OSU

Brown rot of sweet cherry in western Oregon

Creator:: Gashaira, Bashir
Resource Type:: Dissertation
Full Text:: . Aspects of the Disease Cycle of Brown Rot on Sweet Cherry 14 MATERIALS AND METHODS 20 I. A. Disease

Biology of sweet cherry powdery mildew

Creator:: Calabro, Jill M.
Abstract:: The Pacific Northwest has become one of the nation’s premier sweet cherry, Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and Washington, so has powdery mildew, caused by the fungus Podosphaera clandestina, which infects both foliage and fruit causing severe economic damage to growers. Sweet...
Resource Type:: Dissertation
Full Text:: disease evaluations indicated that the training system, rootstock, and cherry cultivar influence the

The identity and the relationship of the viruses causing western X little Cherry and Kootenay little Cherry

Creator:: Wilks, Jack Morton
Resource Type:: Dissertation
Full Text:: group". In addition, there is a virus disease in cherry in the Eastern United States and Canada that

Relation of boron to cherry rosette disease in Oregon, and the possible implication in Oregon, and the possible implication of a virus

Creator:: Bolwyn, Bart
Abstract:: A disease of sweet cherry (Prunus avium L.) known as "cherry rosette" has threatened production of cherries in Oregon. In 1961 this disease was observed in widely separated orchards. Rosette occurred in isolated trees or in spreading patterns, often from identified single trees or from one section of an orchard....
Resource Type:: Dissertation
Full Text:: Relation of boron to cherry rosette disease in Oregon, and

Coniothyrium rose canker in Oregon

Creator:: Intrama, Siriphong
Abstract:: An isolate of Coniothyrium obtained from a stem canker on Nocturne rose from the Botany Department Farm, Corvallis, Oregon was studied with respect to morphological and cultural characters, pathogenicity and mineral nutrition. The hyphae of the isolate were smooth, septate and branched. The hyphal cells averaged 16.37 X 3.52 microns....
Resource Type:: Dissertation

The western oak bark beetle, Pseudopityophthorus pubinpennis (Lec.), in the central Willamette Valley of Oregon

Creator:: Dobson, Richard Cecil
Resource Type:: Dissertation
Full Text:: pubinpennis (Lec.), in the central Willamette Valley of Oregon ?$IS W*ffiS e&F.x by B:*&*eB *ffirL S$SS$X

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Creator:: Jorgensen, Clive Darrel
Abstract:: The ecological interrelationships of mites occurring in and near the Hood River Valley, Oregon, pome fruit orchards were investigated to determine the possibility of an integrated control program using the species already present. Survey sampling methods were used to study mites on wild hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
Resource Type:: Dissertation
Full Text:: - phytopha- gous. Pest species (Panonychus ulmi and Bryobia arborea) were abundant on wild host plots

Phytophthora species and riparian alder tree damage in western Oregon

Creator:: Sims, Laura L.
Abstract:: The genus Phytophthora contains some of the most destructive pathogens of forest trees, including the most destructive pathogen of alder in recent times, Phytophthora alni. Alder trees were reported to be suffering from canopy dieback in riparian ecosystems in western Oregon, which prompted a survey of alder health and monitoring...
Resource Type:: Dissertation
Full Text:: another Phytophthora species could be causing disease in western Oregon, and that this disease would go

The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

Creator:: Booth, Steven R.
Abstract:: This thesis addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to suppress the pear psylla, Cacopsylla pyricola F8rster. Natural enemies adequately suppressed psylla in three of seven unsprayed orchards of differing vegetational settings, orchard age, and size. Relatively few psylla natural enemies dispersed...
Resource Type:: Dissertation
Full Text:: addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to

Forecasting Pseudocercosporella herpotrichoides foot rot of winter wheat

Creator:: Grybauskas, Arvydas P.
Abstract:: The use of fungicides for the control of foot rot of winter wheat, caused by Pseudocercosporella herpotrichoides (Fron) Dei., requires a forecast of disease risk to optimize this management practice ecologically and economically. Foot rot occurs in both the mild, wet (100+ cm, ppt./year) annual cropped areas in western Oregon,...
Resource Type:: Dissertation
Full Text:: fields from eastern and western Oregon. The best predictor of end-of-season disease severity from data

ScholarsArchive@OSU

Brown rot of sweet cherry in western Oregon

Biology of sweet cherry powdery mildew

The identity and the relationship of the viruses causing western X little Cherry and Kootenay little Cherry

Relation of boron to cherry rosette disease in Oregon, and the possible implication in Oregon, and the possible implication of a virus

Coniothyrium rose canker in Oregon

The western oak bark beetle, Pseudopityophthorus pubinpennis (Lec.), in the central Willamette Valley of Oregon

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Phytophthora species and riparian alder tree damage in western Oregon

The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

Forecasting Pseudocercosporella herpotrichoides foot rot of winter wheat

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search