Walnuts
Walnuts
General Sources
- Walnut Production Manual
- Walnut Research Reports
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
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.)
Models
- Nitrogen Fertilization Model for Walnut
- Phenology Model: Codling Moth
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
UC IPM Online
Production Management
- Biological Control of Codling Moth: Parasitoid Releases in Walnuts, Apples and Pears (pdf)
- Cover Cropping in Walnut Orchards (pdf)
- Cover Crops for Walnut Orchards
- English Walnut Rootstocks Help Avoid Blackline Disease, But Produce Less Than "Paradox" Hybrid (pdf)
- Guide to Efficient Nitrogen Fertilizer Use in Walnut Orchards
- IPM-Based Guidelines for Replanting Walnuts in 2002 without Methyl Bromide (pdf)
- Three New Walnut Varieties Released from UC Walnut Breeding Program (pdf)
- UC IPM Pest Management Guidelines: Walnut
- Walnut Fact Sheet
- Walnut Rootstock Selection for Resistance to Phytophthora spp.
- Walnut Trees in the Nursery Trade: Understanding Terminology, How they are Propagated, Availability and Clonal Rootstock Pest Interactions (pdf)
Janet Caprile, UCCE Contra Costa Co., Nick Mills, Dept. of Insect Biology, UC Berkeley. 2004 (1 pp.)
Terry Prichard, UCCE UC Davis, Janine Hasey, UCCE Sutter-Yuba Co. (pdf)
Joseph Grant, UCCE San Joaquin Co., 2006. ANR publication 21627. Link to ANR Catalog for purchase
Joseph Grant, UCCE San Joaquin Co., and Gale McGranahan, Dept. of Plant Sciences UC Davis, in California Agriculture, 2005 (3 pp.)
Kathy Anderson. ANR publication 21623. Link to ANR Catalog for purchase
Michael McKenry, Nematology Dept., UC Riverside, 2002 (3 pp.)
Gale McGranahan, Dept. of Plant Sciences, UC Davis (1 p.)
UC IPM Online
Gale McGranahan, Dept. of Plant Sciences, UC Davis. 1995 (3 pp.)
G.T. Brown, USDA, ARS, Dept. of Plant Pathology, UC Davis
Janine Hasey, UCCE Sutter-Yuba Cos., Wesley Hackett, Gale McGranahan, Dept. of Plant Sciences UC Davis, Michael McKenry, Nematology Dept. UC Riverside, Greg Browne and Dan Kluepfel, USDA. 2009 (2 pp.)
non-University of California Resources
- Crop Profile for Walnuts in California (pdf)
- Eastern Black Walnut: Potential for Commercial Nut Producing Cultivars
National Science Foundation Center for IPM. 1998 (21 pp.)
William Reid, in Janick and Simon (eds), Advances in New Crops. Timber Press, Portland, OR,1990
Organizations
- California League of Food Processors
- California Specialty Crop Council
- California Walnut Commission, Walnut Marketing Board
- Northern Nut Growers Association
Sacramento, CA. Member companies include canners, freezers, dryers and dehydrators of fruits and vegetables
Fresno, CA
Folsom, CA
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.