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Filtering by: Creator Western Orchard Pest and Disease Management Conference Remove constraint Creator: Western Orchard Pest and Disease Management Conference Academic Affiliation Entomology Remove constraint Academic Affiliation: Entomology Resource Type Dissertation Remove constraint Resource Type: Dissertation

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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...

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Dissertation

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of information and expertise to problems of integrated pest management (IPM) in agriculture and
Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Creator:

Messing, Russell H.

Abstract:

A classical biological control project was undertaken against the filbert aphid, Myzocallis coryli (Goetze), in western Oregon. Hazelnut orchards in Spain, France, and Italy were searched for natural enemies of the aphid, and a parasitic wasp, Trioxys pallidus Haliday, was imported, quarantined, mass-reared, and released in Oregon orchards. The wasp...

Resource Type:

Dissertation

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vigour and nut yield. Current integrated pest management programs in Oregon filberts utilize an action
Biology studies of Macrosiphum avenae (Fabr.), Acyrthosiphon dirhodum (Walker), and Rhopalosiphum padi (L.) on Gramineae in western Oregon

Creator:

Greene, Gerald L.

Abstract:

Field biology studies of three grain aphids, Macrosiphum avenae (Fabr.), Acyrthosiphon dirhodum (Walker), and Rhopalosiphum padi (L.) were conducted near Corvallis, Oregon, from 1961 to 1964. Populations of M. avenae were found on grain plants, and alatae entering spring barley may have been from wheat fields. Specimens were found more...

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Dissertation

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.), Acyrthosiphon dirhodum (Walker), and Rhopalosiphum padi (L.) on Gramineae in western Oregon AN ABSTRACT OF THE
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,...

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Dissertation

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been made in western North America to establish the interrelationships of wild hosts and orchard
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...

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Dissertation

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three of seven unsprayed orchards of differing vegetational settings, orchard age, and size. Relatively
Biological control of Tetranychus urticae Koch in hops by phytoseiid mites : feasibility, spatial aspects of interactions, and management

Creator:

Strong, Willard Billings, 1959-

Resource Type:

Dissertation

Full Text:

Tetranychus urticae Koch in Hops by Phytoseiid Mites: Feasibility. Spatial Ass of Interactions. and Management
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

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by an un- identified disease. The larvae were black and the body cavity was filled with a fluid
Host selection, reproductive biology, host-specific development and mortality of the codling moth, Cydia pomonella (L.) (Lepidoptera: Torticidae), in apple and pear

Creator:

Marti, Santiago Marti

Abstract:

The biology and behavior of the codling moth, Cydia pomonella (L.), was studied to determine factors responsible for differences in susceptibility to moth damage among apple and pear cultivars. In release experiments, codling moth adults were intercepted in significantly greater numbers in host (apple, pear) than in non-host (maple) trees,...

Resource Type:

Dissertation

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relationships between a pest and its hosts is important for optimal management. This is also true for codling
Arthropod community organization and development in pear

Creator:

Gut, Larry J.

Abstract:

Arthropod communities in pear are conceptualized as hierarchically organized systems in which several levels of organization or subsystems can be recognized between the species population level and the community as a whole. An individual tree is taken to be the community habitat with arthropod subcommunities developing on leaf, fruit and...

Resource Type:

Dissertation

Full Text:

Evaluation of Arthropod Community Organization and Development 10 Data Management and Analysis 13 RESULTS 15
Conservation of arthropod natural enemies in broccoli with relay strip-cropping

Creator:

McGrath, Daniel M. (Daniel Morton)

Abstract:

Relay strip-cropping combines two vegetation management tactics, under-sowing and strip-management. In this study conducted from 1994 though 1997, a cover crop seed-mixture containing oats (Avena sativa L. var. "Monida"), common vetch (Vicia sativa L.), red clover (Trifolium pratense L.), annual ryegrass (Lolium multflorum Lam.), and buckwheat (Fagopyrum esculentum Moench) was...

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Dissertation

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combines two vegetation management tactics, under- sowing and strip-management. In this study conducted

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Academic Affiliation

Entomology[remove]23

Advisor

Aliniazee, M. T.3
Croft, Brian A.3
Riedl, Helmut2
Ritcher, Paul O.2
Anderson, Norman H.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1942 to 2001

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Committee Member

Anderson, N. H.2
Berry, R. E.2
Appleby, Arnold1
Appleby, Arnold P.1
Berry, Ralph1
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Creator

Baan, Hugo E., van de1
Bajwa, Waheed Ibrahim1
Bonnell, Daniel Ernest1
Booth, Steven R.1
Brenner, Gregory John1
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Date

Date range begin – Date range end

Current results range from 1942 to 2000

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Decade

2000-20093
1990-19996
1980-19895
1970-19795
1960-19693
1940-19491

Degree Field

Entomology23

Degree Level

Doctoral23

Degree Name

Doctor of Philosophy (Ph.D.)23

Language

English [eng]23

Non-Academic Affiliation

Oregon State University. Graduate School23

Peer Reviewed

No23

Resource Type

Dissertation[remove]23

Rights Statement

Copyright Not Evaluated23

Subject

Pear -- Diseases and pests3
Apples -- Diseases and pests2
Mites2
Psylla -- Biological control -- Oregon2
Agricultural pests -- Control -- Data processing1
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