Butte County Cooperative Extension Office
2279-B Del Oro Avenue
Oroville, CA 95965

Phone: (530) 538-7201
Fax: (530) 538-7140
*Call ahead for ADA assistance

Director: Emily Symmes

Butte County Cooperative Extension Office
2279-B Del Oro Avenue
Oroville, CA 95965

Phone: (530) 538-7201
Fax: (530) 538-7140
*Call ahead for ADA assistance

Director: Emily Symmes

Walnuts

To access the Sacramento Valley Walnut Newsletters, please click on the Publications Heading above. Click on Walnut Notes.

Recent Walnut Cost Studies - A summary of production cost approximations

Pest & Disease Management
- UC Integrated Pest Management website
- Pest Management Research Reports
- Phytophthora and Phosphates - An article by San Joaquin Co. Farm Advisor Joe Grant
- Walnut Scale - An >article by Farm Advisors Bill Krueger (Glenn Co.) and Janine Hasey (Sutter/Yuba Co.)
- Spider Mites & Aphid Infestations - An article by Glenn Co. Farm Advisor Bill Krueger
- Walnut Husk Fly - An article by Sutter/Yuba Co. Farm Advisor Janine Hasey
- Codling Moth Management in Walnuts - An article by Tehama Co. Farm Advisor Richard Buchner and IPM Advisor Carolyn Pickel

Nutrition
- Walnut Nutrition Research Reports
- Soil Testing and Analysis: What To Expect In the Report - An article by Glenn Co. Farm Advisor Allan Fulton and UCD ANR Analytical Lab director Dirk Holstege
- July Leaf Analysis - An article by Butte Co. Farm Advisor Joe Connell

Water Management
- CIMIS - California Irrigation Management Information System can help calculate the amount of water your crop is using each day
- Water Management Research Reports
- UC Drought Management - Irrigation Management of Walnut Trees with a Limited Water Supply

General Management
- Walnut Research Reports - A collection of research findings from trials conducted in cooperation with the University of California
- New Walnut Varities Released by UC Davis - An article by San Joaquin Co. Farm Advisor Joe Grant
- Pruning Tips for Young Trees - An article by Sutter/Yuba Co. Farm Advisor Janine Hasey
- Young Walnut Tree Failure - An article by Tehama Co. Farm Advisor Richard Buchner and Butte Co. Farm Advisor Joe Connell
- Planting a Successful Annual Reseeding Cover Crop - An article by Sutter/Yuba Co. Farm Advisor Janine Hasey and CAFF Representative Mark Cady
- Fumigation Guidelines - An article by Solano/Yolo Co. Farm Advisor Carolyn DeBuse
- Managing Walnut Harvest for Quality - An article by Sutter/Yuba Co. Farm Advisor Janine Hasey

Walnut News & Events

Meeting Summaries