Fruit and Nut Information

All of the different cateogories by Fruits & Nuts: Walnut

General Sources

• 2012 Walnut Rootstock Nomenclature
Janine Hasey, Chuck Leslie, Wesley Hackett, Gale McGranahan, Michael McKenry, Greg Browne, and Dan Kluepfel
• Walnut Production Manual
David Ramos, Dept. of Plant Sciences. This revision of the classic Walnut Orchard Management covers all aspects of walnut production. 1997 (328 pp.) UC ANR Pub. 3373. Link to ANR Catalog for purchase
• Walnut Research Reports
A searchable database of annual reports of research in various aspects of walnut production. This database provides reports in pdf format from 1971 to the present.

Production Economics

• Sample Costs to Establish a Walnut Orchard and Produce Walnuts (pdf)
J.A.Grant, San Joaquin Co., K.M.Kelley, UCCE Stanislaus Co., J.L.Caprile, UCCE Contra Costa Co., K.M.Klonsky, UCCE and R.L.DeMoura, Dept. Ag. and Resource Economics, UC Davis, 2007 (19 pp.)
• Sample Costs to Establish a Walnut Orchard and Produce Walnuts, Micro-Sprinkler Irrigated, Sacramento Valley, 2012.
W.H. Krueger, R.P. Buchner, J.K. Hasey, J.H. Connell, C. Debuse, UCCE Glenn County, Tehama-Shasta counties, Sutter-Yuba counties, Butte County, Yolo-Solano counties and K.A. Klonsky and R.L. DeMoura.

Models

• Nitrogen Fertilization Model for Walnut
P.H. Brown and Q. Zhang, Plant Sciences, UC Davis, M. Stevenson, UC-SAREP, R.C. Rosecrance, College of Agriculture CSU Chico. Interactive model to calculate nitrogen requirements
• Phenology Model: Codling Moth
UC IPM Online

Production Management

• Biological Control of Codling Moth: Parasitoid Releases in Walnuts, Apples and Pears (pdf)
Janet Caprile, UCCE Contra Costa Co., Nick Mills, Dept. of Insect Biology, UC Berkeley. 2004 (1 pp.)
• Cover Cropping in Walnut Orchards
Terry Prichard, UCCE UC Davis, Janine Hasey, UCCE Sutter-Yuba Co.
• English Walnut Rootstocks Help Avoid Blackline Disease, But Produce Less Than "Paradox" Hybrid (pdf)
Joseph Grant, UCCE San Joaquin Co., and Gale McGranahan, Dept. of Plant Sciences UC Davis, in California Agriculture, 2005 (3 pp.)
• Guide to Efficient Nitrogen Fertilizer Use in Walnut Orchards
Kathy Anderson. ANR publication 21623. Link to ANR Catalog for purchase
• IPM-Based Guidelines for Replanting Walnuts in 2002 without Methyl Bromide (pdf)
Michael McKenry, Nematology Dept., UC Riverside, 2002 (3 pp.)
• Postharvest Publications and Presentations
A database containing over 1,400 articles and presentations authored by UC postharvest specialists, USDA postharvest researchers, and others. The database is organized by topic and searchable.
• Three New Walnut Varieties Released from UC Walnut Breeding Program (pdf)
Gale McGranahan, Dept. of Plant Sciences, UC Davis (1 p.)
• UC IPM Pest Management Guidelines: Walnut
UC IPM Online
• Walnut Fact Sheet
Gale McGranahan, Dept. of Plant Sciences, UC Davis. 1995
• Walnut Rootstock Selection for Resistance to Phytophthora spp.
G.T. Brown, USDA, ARS, Dept. of Plant Pathology, UC Davis
• Walnut Trees in the Nursery Trade: Understanding Terminology, How they are Propagated, Availability and Clonal Rootstock Pest Interactions (pdf) 2011 update
J. Hasey, UCCE Sutter-Yuba Cos., W. Hackett, G. McGranahan, and C. Leslie, Dept of Plant Sciences UC Davis, M. McKenry, Nematology Dept. UCRiverside, G. Browne and D. Kluepfel, USDA. 2011 (2 pp.)

non-University of California Resources

• Crop Profile for Walnuts in California (pdf)
National Science Foundation Center for IPM. 1998 (21 pp.)
• Eastern Black Walnut: Potential for Commercial Nut Producing Cultivars
William Reid, in Janick and Simon (eds), Advances in New Crops. Timber Press, Portland, OR,1990

Organizations

• California League of Food Processors
Sacramento, CA. Member companies include canners, freezers, dryers and dehydrators of fruits and vegetables
• California Specialty Crop Council
Fresno, CA
• California Walnut Commission, Walnut Marketing Board
Folsom, CA
• Northern Nut Growers Association
US and Canada, no California affiliates

Some links are to sites outside of the UC domain. No endorsement is intended of products, services, or information, nor is criticism implied of similar sites that are not mentioned.