Index Catalog // ScholarsArchive@OSU

Hare barley (Hordeum murinum ssp. leporinum) biology and management in cool season perennial grass pastures of western Oregon

Creator:: Haavisto, Jessica Lee
Abstract:: Hare barley (Hordeum murinum ssp. leporinum) is a cool season annual grass that invades pastures and range areas around the world. A documented weed management issue in several Oregon counties, hare barley may infest several thousand acres in western Oregon. This study was conducted to investigate the biology and develop...
Resource Type:: Masters Thesis
Full Text:: states including Oregon. In Oregon, hare barley is documented as a weed management issue in perennial

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

Creator:: Liu, Mingyang
Abstract:: Italian ryegrass (Lolium perenne spp. multiflorum) is a common weed management problem in turfgrasses, cereals and non-crop areas in the United States. In Oregon, the number of populations with multiple-resistance continues to increase. To manage these resistant populations, the resistance patterns must be determined. In this study, five Italian ryegrass...
Resource Type:: Masters Thesis
Full Text:: in farmland throughout U.S. In Oregon, Italian ryegrass is a competitive weed in winter wheat

Some factors influencing the chemical control of annual grasses in Festuca arundinacea Schreb

Creator:: Bayer, David E.
Resource Type:: Masters Thesis
Full Text:: Typos of Fertilizers Applied in March at the Rate of 60 Pouncs Nitrogen per Acre on the Weed Control

Seed depth influence on position of the growing point and chemical control of wild proso Millet (Panicum miliaceum L.)

Creator:: Fernandez Mendez, Raquel J.
Abstract:: Wild proso millet (Panicum miliaceum L.) is a serious weed recently infesting sweet corn fields in the Willamette Valley of western Oregon. Field and greenhouse experiments were conducted to determine the importance of seed depth in the position of the growing point of wild proso millet seedlings and in the...
Resource Type:: Masters Thesis
Full Text:: .) is a serious weed recently infesting sweet corn fields in the Willamette Valley of western Oregon

Weed management for giant reed (Arindo donax) biomass production in Oregon

Creator:: Attarian, Amir
Abstract:: Giant reed (Arundo donax L.) is a candidate to provide feedstock for the Portland General Electric power plant in Boardman, Oregon. Giant reed is a fast perennial grass, producing 23-27 metric tons ha⁻¹ of biomass and has the ability to adapt to diverse environments making it a good candidate for...
Resource Type:: Masters Thesis
Full Text:: importance of weed management and control in the newly established fields in Oregon, it is necessary to

Weed suppression in vegetables with residues of 'micah' barley (Horedeum vulgare L.) and other spring cereals

Creator:: Chongwe, Edgar Happy
Abstract:: Three experiments whose objectives were to investigate cover crop kill by winter freeze, weed suppression by 'Micah' barley and other spring cereals, and allelopathic potential of cereal covers were conducted at the Vegetable Research Farm and in the greenhouse and growth chamber facilities at OSU in 1989/90. Kill by winter...
Resource Type:: Masters Thesis
Full Text:: 1989/90. Complementary usage of herbicides and residues for weed control is suggested. Residues

The effects of defoliation on yellow starthistle (Centaurea solstitialis L.) reproductive capacity

Creator:: Schumacher, Stacy
Abstract:: Yellow starthistle (Centaurea solstitialis L.) is an introduced Asteraceae that has become established on 10 million acres in the Pacific Northwest and California. This weed functions as an annual or short-lived perennial and depends on seeds for reproduction. Strategies of control that reduce plant fitness or lower seed production or...
Resource Type:: Masters Thesis
Full Text:: northeastern Oregon 47 14. Percent infestation of yellow starthistle seedheads of biological control agents

Weed, water, and nutrient management practices for organic blackberry during establishment

Creator:: Harkins, Renee H.
Abstract:: The study was conducted in an organic trailing blackberry (Rubus L. subgenus Rubus, Watson) planting established at the North Willamette Research and Extension Center in Aurora, OR on 26 May 2010. Three weed management systems were compared for 'Marion' and 'Black Diamond': 1) non-weeded; 2) hand-hoed two to three times...
Resource Type:: Masters Thesis
Full Text:: - and micro-nutrient accumulation than ‘Marion’. Plants grown without weed control produced fewer but

Hybridization between yellow starthistle (Centaurea solstitialis) and meadow knapweed (Centaurea x moncktonii)

Creator:: Miskella, John
Abstract:: Centaurea solstitialis L. (yellow starthistle) and C. × moncktonii Britt. (meadow knapweed) are members of the genus Centaurea in the Asteraceae family. Both species have become serious management concerns as invasive species in North America, often displacing native vegetation and costing land managers millions of dollars to eradicate. Seven plants...
Resource Type:: Masters Thesis
Full Text:: noxious weed that grows over large areas in California, Oregon, Idaho, and Washington. It has also been

Control of Lepidium latifolium and restoration of native grasses

Creator:: Laws, Margaret S.
Abstract:: Lepidium latifolium L. (perennial pepperweed, LEPLA) is an exotic invader throughout western North America. At Malheur National Wildlife Refuge (MNWR) in southeast Oregon, it has invaded about 10% of meadow habitats that are important for wildlife. This study's objective was to determine the most effective and least environmentally harmful treatment...
Resource Type:: Masters Thesis
Full Text:: treatment to control this weed and restore native vegetation using integrated pest management techniques

ScholarsArchive@OSU

Hare barley (Hordeum murinum ssp. leporinum) biology and management in cool season perennial grass pastures of western Oregon

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

Some factors influencing the chemical control of annual grasses in Festuca arundinacea Schreb

Seed depth influence on position of the growing point and chemical control of wild proso Millet (Panicum miliaceum L.)

Weed management for giant reed (Arindo donax) biomass production in Oregon

Weed suppression in vegetables with residues of 'micah' barley (Horedeum vulgare L.) and other spring cereals

The effects of defoliation on yellow starthistle (Centaurea solstitialis L.) reproductive capacity

Weed, water, and nutrient management practices for organic blackberry during establishment

Hybridization between yellow starthistle (Centaurea solstitialis) and meadow knapweed (Centaurea x moncktonii)

Control of Lepidium latifolium and restoration of native grasses

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