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Goal: To utilize scientific knowledge and production experience to improve wine grape
quality.
Experience:
1983-present: Viticultural Consultant,
St. Helena, California
Consultant to vintners and growers with emphasis on field research,
feasibility analysis; vineyard development, studies/block design/trellis,
diagnosis/treatment, rootstock recommendations; wine grape brokerage; technical studies;
expert witness.
1979-83: Technical Director, Napa Valley Vineyard Company,
Rutherford, California
Responsible for crop protection and cultural programs for 2,300 acres Napa and Sonoma
Valley Vineyards managed for ten clients. Monitored and scheduled delivery of more than
26,000 tons of grapes to 22 wineries. Designed and conducted research projects
resulting in publication of scientific papers. Conducted vineyard feasibility studies and
maintained technical relationship with clients and wineries.
1969-79: Senior Viticulturalist, E & J Gallo Winery Ranch,
Livingston, California
Directed insect, disease and nutritional diagnosis, treatment and control on 8,000
acres of vineyard and crops in Livingston, Modesto, Hopeton and Fresno. Managed nursery
propagation and safety training procedures. Researched cultural and environmental
methods to improve wine quality and managed vineyard experimental wine projects.
1966-69: Assistant Viticulturist and Laboratory Director, Christian
Brothers Winery, Napa, California
As Assistant Viticulturalist, completed experiments in pruning, fertilization,
irrigation, climate effects, trellising, and experimental wine production. As
Laboratory Director, conducted wine and must analysis and quality control.
1965-66: Wine Chemist, Bisceglia Brothers Wine Co., Madera,
California
In charge of wine, must, and high-proof analysis, quality control, blending, cellar
inventory, and records.
Education:
1961-65: University of California, Davis, California
Bachelor of Science degree, Viticulture, June 1965. Followed plant science
curriculum with emphasis in plant physiology, soils, chemistry, and agricultural
economics. Advanced undergraduate studies in indexing nematode tolerant rootstocks. Wine
institute scholarship recipient.
Professional Affiliations:
American Society for Enology and Viticulture, Director 1980-82, 1982-84;
professional member since 1966
Napa Valley Vineyard Technical Group, President 1986; member since 1979
Napa Valley Wine Technical Group, Secretary/Treasurer 1968
Napa Valley Grape Growers Association
Pierces Disease Task Force
California Weed Science Society
Northern California Enology Club
Certificates:
American Society of Wine Educators, Industry Instructor
University of California Extension Course Coordinator, Instructor
Napa Valley Wine Library Association, Instructor
Wine Grape Broker, License GA337000
California Pest Control Advisor, License 3228
California Community College Teaching Credential
American Arbitration Association, Panelist
Expert Witness
Publications:
Cornelius S. Ough, Richard T.
Nagaoka. Yield, Compositional and Wine Tasting Differences Between Three Thinning
Levels on Cabernet Sauvignon. American Journal for Enology and Viticulture,
Vol. 35, No. 1, p. 30-34, 1983.
W. E. Wildman, R. T. Nagaoka, and L. A. Lider.
Monitoring Spread of Grape Phylloxera by Color Infrared Photography and Ground
Investigation. American Journal for Viticulture and Enology, Vol. 34, No.
2, p. 83-94, 1983.
Richard T. Nagaoka. The Crop Response of Gewurztraminer to Cutworm Feeding
Injury by Bud Position. Presented June 1986, American Society for
Enology and Viticulture Annual Meeting.
Richard T. Nagaoka, Cornelius S. Ough. The Influence of Devigorating Rootstock
on the Vine Performance and Wine Quality of Cabernet Sauvignon. American Vineyard
Foundation. Funded l987-1991, and presented June 1992, American Society for Enology and
Viticulture Annual Meeting.
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