Index Catalog // ScholarsArchive@OSU

Nitrogen use in container-grown woody ornamentals

Creator:: Sandrock, David Ray, 1971-
Abstract:: Lasting, effective solutions to nitrogen (N) loss from container nurseries must address layers of complexity ranging in scale from whole system nursery management to gene expression. Group-based On-site Active Learning (GOAL) was developed to aid nursery managers and related stakeholders (e.g. neighbors, policy makers, regulating agencies, researchers) in developing a...
Resource Type:: Dissertation
Full Text:: -GROWN WOODY ORNAMENTALS CHAPTER 1 INTRODUCTION Container production of woody ornamental plants is

A curricular model in ornamental horticulture for vocational agriculture in Oregon

Creator:: Loewen, Curtis Eugene
Abstract:: The central purpose of this study was to formulate and test a model for securing information from the ornamental horticultural industry that would provide a basis for curriculum development in vocational agriculture. In order to develop the model, it was necessary to accomplish the following: 1. Determine typical occupations in...
Resource Type:: Dissertation
Full Text:: and drainage, fertilizer materials, pest control, use of chemicals, and basic business operation

Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

Creator:: Pratt, Paul D.
Abstract:: We identified and evaluated a phytoseiid predator as a biological control agent of multiple spider mites pests that occur in ornamental nurseries. When comparing species, Neoseiulus fallacis (Garman) had a wider prey range than Galendromus occidentalis (Nesbitt), a higher probability of overwintering than Neoseiulus califomicus McGregor and was equally or...
Resource Type:: Dissertation
Full Text:: ......................................................................................................... 103 8. NEW SPIDER MITE PESTS OF ORNAMENTALS AND BIOLOGICAL CONTROL BY NEOSEIULUS FALLACIS

Honey Bees and Apple Trees : Hood River, Oregon as a Case Study for the Creation of the Honey Bee Pollination Industry

Creator:: Kellar, Brenda M.
Abstract:: The use of honey bees to pollinate apple orchards seems natural, even inevitable. This dissertation examines the relationship of beekeeping and apple growing in Hood River, Oregon in the mid-nineteenth to the mid-twentieth centuries, as a case study in the development of commercial pollination service. Within this time period the...
Resource Type:: Dissertation
Full Text:: Rueber and Deborah Fitzgerald, have talked about the role of data collection in rational turn of the

An Assessment of the “Sweating Sickness” Affecting England During the Tudor Dynasty

Creator:: Wollert, Edwin Del
Abstract:: While historiography and interest in Tudor England at both the popular and specialist levels presents few signs of diminishing, there may nonetheless exist a sense that we have little left to learn about this period and its culture. A notable gap in our knowledge, however, remains regarding the mysterious disease...
Resource Type:: Dissertation
Full Text:: England at both the popular and specialist levels presents few signs of diminishing, there may

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:: of apple pest damage, pests and common natural enemies are readily available through extension

The etiology of bacterial soft rot of onions and identification of the causal organisms

Creator:: Irwin, Roger Deane
Abstract:: Observations of bacterial soft rot of onions in the Lake Labish area in the Willamette Valley of western Oregon showed that two distinct symptom types occur during the growing season. The most prevalent symptom type appears in infected plants as a wilting and chlorosis of two or more lower leaves...
Resource Type:: Dissertation
Full Text:: of the outer fleshy scales. These scales turn yellowish, soft, and are foul smelling. A second kind

Factors affecting underdeveloped and empty fruits of monogerm sugar beets (Beta vulgaris L.)

Creator:: Force, Donald Wallace, 1934-
Resource Type:: Dissertation
Full Text:: ) germi- nation and emergence failures, 2) hazards of soil crusting, pest and pesticide injury, and 3

Role of associated fungi in the prevention of gray mold (Botrytis cinerea Pers.) of strawberries

Creator:: Bhatt, Dibya Deo
Resource Type:: Dissertation
Full Text:: to work for a Ph. D. degree and for his assistance in securing an extension of my leave and

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

Creator:: Zehsazian, Hassan
Abstract:: Verticillium wilt of hops in Oregon, caused by Verticillium dahliae Kleb., was first reported in 1956. Later, V. albo-atrum Reinke & Berth. was also isolated from infected hop plants, and thus both species of the fungus were shown to be the causal agents of the disease in Oregon. The purpose...
Resource Type:: Dissertation
Full Text:: Verticillium wilt of hops : pathogenicity, host range, and

ScholarsArchive@OSU

Nitrogen use in container-grown woody ornamentals

A curricular model in ornamental horticulture for vocational agriculture in Oregon

Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

Honey Bees and Apple Trees : Hood River, Oregon as a Case Study for the Creation of the Honey Bee Pollination Industry

An Assessment of the “Sweating Sickness” Affecting England During the Tudor Dynasty

AppleMgr, a prototype decision aid for apple pest management

The etiology of bacterial soft rot of onions and identification of the causal organisms

Factors affecting underdeveloped and empty fruits of monogerm sugar beets (Beta vulgaris L.)

Role of associated fungi in the prevention of gray mold (Botrytis cinerea Pers.) of strawberries

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

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