Index Catalog // ScholarsArchive@OSU

Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Creator:: Flores, Salvador M.
Abstract:: The azalea lace bug (Stephanitis pyrioides Scott) is a recently detected invasive pest to the Pacific Northwest and has become a major concern in Oregon. It feeds on azaleas as well as rhododendrons causing stippling on the top side of leaves. The damage is aesthetically displeasing and affects plant vigor...
Resource Type:: Masters Thesis
Full Text:: . Title: Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

Creator:: Krzesinska, Elzbieta Z.
Abstract:: Bacterial canker, caused by Pseudomonas syringae pv. syringae is recognized as one of the greatest limiting factors in cherry production in Oregon. Disease incidence may be decreased when susceptible cultivars are high-grafted onto tolerant/resistant rootstocks. This research was begun to develop a rapid screening method which could be used to...
Resource Type:: Masters Thesis
Full Text:: is recognized as one of the greatest limiting factors in cherry production in Oregon. Disease

DNA markers linked to novel sources of resistance to eastern filbert blight in European hazelnut (Corylus avellana L.)

Creator:: Sathuvalli, Vidyasagar R.
Abstract:: The hundred-year history of the hazelnut industry in the Pacific Northwest is threatened by eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller. Marker-assisted selection (MAS) has been extensively used for ‘Gasaway’ resistance in the hazelnut breeding program at Oregon State University. Concern over breakdown of...
Resource Type:: Masters Thesis
Full Text:: , ‘Ratoli’ and OSU 759.010) have shown no signs or symptoms of the disease following a series of

Development of an in vitro and modification of an in vivo bioassay to screen cherry genotypes for response to inoculation with Pseudomonas syringae pv. syringae

Creator:: Roche, M. Margaret
Abstract:: The bacterium Pseudomonas syringae affects different crops worldwide. In the Willamette Valley of Oregon, P. syringae causes bacterial canker in sweet cherry, severely limiting its production. High grafting of susceptible sweet cherry cultivars to resistant rootstocks is practiced in the Willamette Valley to reduce incidence of this disease. The research...
Resource Type:: Masters Thesis
Full Text:: Oregon, is also destructive. Of somewhat lesser significance are symptoms on the leaves, fruit, and

Pyramiding quantitative trait loci conditioning partial resistance to Sclerotinia sclerotiorum in bush blue lake green beans (Phaseolus vulgaris)

Creator:: Barrett, Miles Andrew
Abstract:: Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic pathogen capable of causing white mold, a severe disease in common bean. White mold is of particular concern to the Oregon snap bean processing industry, where processors allow less than 3% incidence in harvested shipments. Breeding for white mold resistance in beans...
Resource Type:: Masters Thesis
Full Text:: disease in common bean. White mold is of particular concern to the Oregon snap bean processing industry

Managing Microdochium Patch Using Non-Traditional Fungicides on Annual Bluegrass Putting Greens

Creator:: Mattox, Clint M.
Abstract:: Currently, fungicide applications are the predominant method of control for the cool weather pathogen Microdochium patch (Microdochium nivale). Increasing pesticide restrictions have generated concern regarding management of Microdochium patch. Three separate field trials exploring non-traditional fungicides were conducted between 2013 and 2015 on an annual bluegrass (Poa annua L.) sand-based...
Resource Type:: Masters Thesis
Full Text:: ha-‐1 provided the greatest combination of disease control and turf

Microsatellite Marker Development, Characterization and Mapping in European Hazelnut (Corylus avellana L.), and Investigation of Novel Sources of Eastern Filbert Blight Resistance in Corylus

Creator:: Bhattarai, Gehendra
Abstract:: European hazelnut, an important nut crop in Oregon agriculture, is threatened by the fungal disease eastern filbert blight (EFB) caused by Anisogramma anomala (Peck) E. Müller. The hazelnut breeding program at OSU has been working on development of EFB-resistant cultivars. DNA markers allow mapping of traits using segregating progenies and...
Resource Type:: Masters Thesis
Full Text:: hazelnut, an important nut crop in Oregon agriculture, is threatened by the fungal disease eastern

The effect of common corn smut (Ustilago maydis) on sweet corn (Zea mays L.) in the Columbia Basin

Creator:: Blatchford, Sarah
Abstract:: Impact of natural infection of common com smut (Ustilago maydis) on processing characteristics of three F₁ hybrid sweet com (Zea mays L.) cultivars was evaluated in a two-year study with early and late spring planting dates. At harvest maturity, size and location of galls were recorded and quality characteristics measured....
Resource Type:: Masters Thesis
Full Text:: Northwest is produced in the Columbia Basin (central Washington and northeastern Oregon). Approximately

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Creator:: Klick, Jimmy
Abstract:: Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies that in the past five years (2009-2014) invaded berry and stone fruit production regions in Europe and the Americas. Evolutionary adaptations, biological traits, and anthropogenic factors have contributed to its current status as a global pest. Females oviposit eggs into ripe...
Resource Type:: Dissertation
Full Text:: , Movement, and Management of Drosophila suzukii in Oregon Berry Crops Abstract approved

Biology and demography of grape phylloxera, Daktulosphaira vitifoliae (Fitch) (Homoptera: Phylloxeridae), in western Oregon

Creator:: Connelly, Anne E.
Abstract:: Grape phylloxera, Daktulosp/iaira vitfoliae (Fitch) development was studied under field and laboratory conditions. The aphid-like insect feeds on Vitis vinfera L. roots producing swellings that decay and lead to vine decline. The only long-term economic solution for control of grape phylloxera (GP) is to plant vines grafted onto a resistant...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

DNA markers linked to novel sources of resistance to eastern filbert blight in European hazelnut (Corylus avellana L.)

Development of an in vitro and modification of an in vivo bioassay to screen cherry genotypes for response to inoculation with Pseudomonas syringae pv. syringae

Pyramiding quantitative trait loci conditioning partial resistance to Sclerotinia sclerotiorum in bush blue lake green beans (Phaseolus vulgaris)

Managing Microdochium Patch Using Non-Traditional Fungicides on Annual Bluegrass Putting Greens

Microsatellite Marker Development, Characterization and Mapping in European Hazelnut (Corylus avellana L.), and Investigation of Novel Sources of Eastern Filbert Blight Resistance in Corylus

The effect of common corn smut (Ustilago maydis) on sweet corn (Zea mays L.) in the Columbia Basin

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Biology and demography of grape phylloxera, Daktulosphaira vitifoliae (Fitch) (Homoptera: Phylloxeridae), in western Oregon

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