Index Catalog // ScholarsArchive@OSU

Weeds With a Purpose: Interseeding Cover Crops into Sweet Corn in Western Oregon

Creator:: Donaldson, Andrew R.
Abstract:: Cover crop establishment in late-season crops, like sweet corn, may be difficult due to the relatively short operational window following crop harvest. In regions like western Oregon, where fall-precipitation can occur when the crop is still in the field, cover crops may not be able to be planted, due to...
Resource Type:: Masters Thesis
Full Text:: issues associated with fall seeded with little effect on sweet corn, resulting in adequate cover crop

The Impact of Temperature on Halyomorpha halys (Hemiptera: Pentatomidae) Life Table Parameters and Feeding Pressure

Creator:: Maslen, Erika A.
Abstract:: Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an invasive insect pest that has become established and problematic in the Pacific Northwest. Known colloquially as the brown marmorated stink bug (BMSB), H. halys causes direct damage through feeding activity on a wide range of agronomic and horticultural crops. The objectives of this...
Resource Type:: Masters Thesis
Full Text:: and life stage had a significant effect on feeding activity in wine grapes. The mean number of

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

Creator:: Tang, Siew Bee
Abstract:: Spotted wing drosophila (SWD), Drosophila suzukii, is an economically damaging pest on small fruits. The estimated economic impact is hundreds of millions of dollars annually in the U.S. alone, and increasing every year. Current control of SWD relies heavily on chemical insecticides which have many negative impacts on environmental and...
Resource Type:: Masters Thesis
Full Text:: reduce pesticide usage and minimize off target effect. In addition to chemical approach, trapping

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Creator:: Parris, Cheryl A.
Abstract:: Stevia (Stevia rebaudiana) is a perennial herbaceous plant native to Paraguay and used traditionally by the native Guarani peoples for centuries to sweeten medicinal teas. Stevia has only been commercially cultivated over the past 50 years and cultural practice information suitable for implementation by growers is limited. Currently stevia’s commercial...
Resource Type:: Masters Thesis
Full Text:: A. Parris for the degree of Master of Science in Horticulture presented on March 25, 2016

Effects of cover crop and vineyard floor management on young vine growth, soil moisture, and weeds in an establishing vineyard in the Willamette Valley of Oregon

Creator:: Fredrikson, Levi
Abstract:: Five vineyard floor management treatments were evaluated in a young vineyard in western Oregon to better understand the effects on vine growth and nutrition, soil moisture dynamics, and weed control during 2009 and 2010. Treatments included two mulched treatments where mowed alleyway residue was transferred in-row at rates of 1x...
Resource Type:: Masters Thesis
Full Text:: . Griffin, T., M. Liebman, and J. Jemison, Jr. 2000. Cover crops for sweet corn production in a short

Effects of Biochar and Nitrogen-Enriched Soil Amendments on Plant Growth, Mineral Nutrition, and Early Fruit Production in Highbush Blueberry (Vaccinium sp.)

Creator:: Sales, Bryan K.
Abstract:: The goal of the work in this dissertation was to identify alternative soil amendments to improve plant growth and yield during establishment of highbush blueberry (Vaccinium hybrid). Woody materials, such as sawdust and wood chips, have a high carbon to nitrogen (C:N) ratio and low water holding capacity, which can...
Resource Type:: Dissertation
Full Text:: .......................................118 Fig. 4.2. Interactive effects of soil amendment ! N enrichment on concentration of N in the

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

Creator:: Green, Jessica M.
Abstract:: Weed management in sustainable farming systems often requires the integration of several different pest management techniques. Cultural, biological, and chemical pest control efforts can be utilized to contribute to the common goal of reducing weeds in vegetable row crop systems. This research addresses how common disturbances such as tillage and...
Resource Type:: Masters Thesis
Full Text:: . found that a continuous system of direct- seeding in the spring in a snap bean-sweet corn-wheat

Nutrient management of blackberry cultivars grown in organic production systems

Creator:: Fernandez-Salvador, Javier A.
Abstract:: The impact of fertilizer source and cultivar on growth, fruit quality, and yield was evaluated in organic blackberry (Rubus L. subgenus Rubus Watson) from 2011-2013 in three studies. In all studies, plants were drip irrigated, and weeds were managed using a woven polypropylene, permeable landscape fabric (weed mat). At a...
Resource Type:: Masters Thesis
Full Text:: ......................................................................................................................... 32 CHAPTER 3: Liquid Corn and Fish Fertilizers are Good Options for Fertigation in Blackberry

A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

Creator:: Nelson, Michael, II
Abstract:: Urban agriculture (UA) is defined as the production of food crops or livestock within urban areas. Despite its popularity in the United States, research into UA systems suffers from a general underrepresentation of commercial urban systems. As a result, urban growers often have unique technological needs that are unmet by...
Resource Type:: Masters Thesis
Full Text:: cumulative effects of anthropogenic factors in an urban area. Models must thus account for extreme

Winter Squash: Production and Storage of a Late Winter Local Food

Creator:: Wetzel, Jennifer D.
Abstract:: Winter squash is an important late winter vegetable crop for local and regional markets; however, farmers in western Oregon report that this crop is marginally profitable due to losses in storage and relatively low yields for the high culinary value kabocha and buttercup types. In order to increase the sales...
Resource Type:: Masters Thesis
Full Text:: can be found in Chapter 2. The second manuscript The Effect of Irrigation and Storage Environment

ScholarsArchive@OSU

Weeds With a Purpose: Interseeding Cover Crops into Sweet Corn in Western Oregon

The Impact of Temperature on Halyomorpha halys (Hemiptera: Pentatomidae) Life Table Parameters and Feeding Pressure

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Effects of cover crop and vineyard floor management on young vine growth, soil moisture, and weeds in an establishing vineyard in the Willamette Valley of Oregon

Effects of Biochar and Nitrogen-Enriched Soil Amendments on Plant Growth, Mineral Nutrition, and Early Fruit Production in Highbush Blueberry (Vaccinium sp.)

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

Nutrient management of blackberry cultivars grown in organic production systems

A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

Winter Squash: Production and Storage of a Late Winter Local Food

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