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Winegrape Variety Trial in Southern Oregon 1993 Season

Creator:: Sugar, David and Lombard, Porter
Abstract:: Four year old vines of 18 varieties were cane pruned, trained to a Scott Henry, thinned before veraison, and harvested in October and November 1993. Two of the varieties, Chardonnay and Cabernet Sauvignon, were used as standards. Only four varieties were spur pruned to reduce cropping or cluster size: Dolcetto,...
Resource Type:: Technical Report

Survey of the Beneficial and Pest Insect Fauna from Integrated Production and Non-Integrated Production Vineyards in the Willamette Region

Creator:: Viguers, Leslie and Fisher, J. R.
Abstract:: The wine grape industry is rapidly growing in Oregon. By the year 2005, we could predict that Oregon will have over 10,000 acres in wine grape production. At a meeting last year, the Grapevine Improvement Committee acknowledged that little was known about the presence of potential pest and beneficial insects...
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1998-1999

Creator:: Pinkerton, Jack and Candolfi-Vasconcelos, M. Carmo
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. Population densities of Xiphinema americanum (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause 10-25% loss in California vineyards. However, these nematode...
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1996-1997

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell
Abstract:: Survey data compiled in 1995 showed that plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. In over 37% of the samples collected, population densities of Xiphinema wnericanwn (dagger nematode) and Criconenw1la xenoplax (ring nematode) were greater than levels known...
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell E.
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85 % of Oregon vineyards. Population densities of Xiphinema americanun (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause > 10-25% loss in California vineyards. However,...
Resource Type:: Technical Report

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1992-1993]

Creator:: Sugar, David, Lombard, Porter, and Hilton, Richard
Abstract:: To characterize the cultural aspects, maturation, production, and wine quality of several untested Italian, French, and Spanish wine cultivars in southern Oregon.
Resource Type:: Technical Report

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1991-1992]

Creator:: Sugar, David and Hilton, Richard
Abstract:: The immediate objective of this project is to establish a vineyard at the Southern Oregon Experiment Station in which previously untested wine grape cultivars will be evaluated. The ultimate goal is to characterize the production and wine qualitypotential of these cultivars in southern Oregon.
Resource Type:: Technical Report

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1990-1991]

Creator:: Sugar, David and Hilton, Richard
Abstract:: Climatic conditions in southern Oregon are unique among the wine-growing regions of the Pacific Northwest. Previous experience has shown that one strength of this region lies in the production of warm-climate cultivars which may not mature properly in other regions of Oregon. The current selection of such cultivars with known...
Resource Type:: Technical Report

Evaluation of Grape Powdery Mildew Forecasting Programs

Creator:: Pscheidt, Jay W., Wittig, H. P. P., and Candolfi-Vasconcelos, M. Carmo
Abstract:: Three forecasting programs for scheduling fungicide applications were selected for comparison with the standard Oregon phenology based program. The UCDavis (California) program used leaf wetness and temperature early in the year and only temperature during the summer. The New York program was based on rainfall and temperature. The German Oi...
Resource Type:: Technical Report

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1994-1995]

Creator:: Ingham, Russell E., Forge, Thomas, Strik, Bernadine C., and Pinkerton, J. N.
Abstract:: Objectives 1. Survey Oregon vineyards for the presence, identity and abundance of plant-parasitic nematodes. 2. Relate the distribution and abundance of potentially pathogenic species to viticultural practices and site characteristics. 3. Evaluate the efficacy of Nemacur for reducing populations of plant-parasitic nematodes. 4. Document seasonal changes in the abundance of...
Resource Type:: Technical Report

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1993-1994]

Creator:: Ingham, Russell E., Strik, Bernadine C., Forge, Thomas, and Connelly, Ann
Abstract:: Objectives: 1. Survey Oregon vineyards for the presence, identity and abundance of plant parasitic nematodes. 2. Document seasonal changes in abundance of species of important plant parasites in order to identify optimum times for sampling. 3. Evaluate the efficacy of Nemacur for reducing populations of plant parasitic nematodes.
Resource Type:: Technical Report

Development and Testing of Bacteria Free Grapevines for Prevention of Crown Gall in Oregon Nurseries and Vineyards

Creator:: Miller, Marilyn L., Moore, Larry W., Mentzer, Jessica, Dierenfield, Lora, Ferguson, Kathleen, Candolfi-Vasconcelos, M. Carmo, and Castagnoli, Steve
Abstract:: Agrobacterium vitis is a bacterium that causes crown gall in grapevines. Plant injury from freezing temperatures or mechanical damage during cultivation often provide wounds required for infection to occur. Crown gall may kill grapevines and a new shoot is often brought up from the root to replace dead vines. Discovery...
Resource Type:: Technical Report

Biology and Demographics of Phylloxera in Western Oregon

Creator:: Strik, Bernadine C., Connelly, Anne, Fisher, Glenn, and Granett, Jeffrey
Abstract:: Since phylloxera's discovery in a commercial vineyard in August of 1990, nine infestations have been verified in Oregon. With over 95% of Oregon's vineyards planted with ownrooted, Vitis vinifera, non-resistant vines, understanding the insect's biology under our conditions has become important for determining management strategies that minimize rate of spread....
Resource Type:: Technical Report

ScholarsArchive@OSU

Winegrape Variety Trial in Southern Oregon 1993 Season

Survey of the Beneficial and Pest Insect Fauna from Integrated Production and Non-Integrated Production Vineyards in the Willamette Region

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1998-1999

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1996-1997

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1992-1993]

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1991-1992]

Evaluation of New Wine Grape Cultivars for Production Potential in Southern Oregon [1990-1991]

Evaluation of Grape Powdery Mildew Forecasting Programs

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1994-1995]

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1993-1994]

Development and Testing of Bacteria Free Grapevines for Prevention of Crown Gall in Oregon Nurseries and Vineyards

Biology and Demographics of Phylloxera in Western Oregon

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