University of California
Stanislaus County

Walnut News

Walnut News & Fruit For Thought Newsletter

Issue Articles Type Date Added
San Joaquin Valley Weed Days in April (921KB)

Good Afternoon


There are two scheduled San Joaquin Valley Weed Days in April (4/2 and 4/11). Please see link at the bottom of this email for more information.


Thank you

PDF 3/11/19
UCCE Stanislaus County IPM Breakfast Meetings resume March 6 (100KB)

Good afternoon

Our University of California Cooperative Extension Tree & Vine IPM Breakfast meetings will begin again next Wednesday, March 6.  These informal discussions focus on real-time insect and disease issues and their management.  They are held every first and third Wednesday morning from March through June from 7:00 a.m. – 8:00 a.m. at the Old Mill Café, 600 9th Street in Modesto.  One hour of continuing education credit is offered at each meeting.  There is no charge – just buy your own breakfast and tip the waitress!  If you have questions or would like to sponsor the $45 fee for CE credits, please call our office at 209-525-6800.


Best wishes,


Roger Duncan
Pomology Advisor and Director
UC Cooperative Extension, Stanislaus County

ANR Catalog

PDF 3/1/19
Grapevine Production Short Course (88KB)

Grapevine Production Short Course

February 12-15, 2019
Springhill Suites Napa, CA and Oakville Experimental Vineyard Oakville, CA 
UC Davis

Plan to join us for this integrated vineyard management short course featuring UC faculty, Cooperative Extension specialists and farm advisors, and USDA researchers who will provide an in-depth, comprehensive study of all phases of grapevine culture and production.

The program is based on the latest information and research and will cover the fundamental principles that form the basis for practical decisions and include Q&A for each session, quality time with instructors and networking opportunities.
Who should attend: New and experienced growers as well as other industry members interested in commercial grape production.


$1200 Registration Fee Includes

  • Four full days of instruction with hands-on demonstrations in the vineyard
  • Transportation to Oakville Experiment Station
  • An electronic binder of all presentations
  • DPR (PCA) & CCA credits (pending approval) 
  • Breakfast, lunch, and refreshments all four days of the course

Register to learn more about:

  • Vineyard planning, design, and development
  • Grapevine variety and rootstock selection
  • Evaluation and modification of water and soils
  • Grapevine training, pruning and canopy management
  • Physiology of the grapevine 
  • Irrigation scheduling
  • Proper use and maintenance of irrigation systems
  • Mineral nutrition and fertilization
  • Management of weeds and vertebrate pests
  • Integrated pest manage
PDF 1/18/19
Walnut News January 2019 (100KB)

Contents of Walnut News Newsletter:

Quad-County Walnut Institute
February 5, 2019


PDF 1/10/19
2019 San Joaquin Valley Grape Symposium (133KB)

Hello All,


The 2019 San Joaquin Valley Grape Symposium will be held at the CPDES Hall in Easton, CA on January 9, 2019.

Please see agenda for more information.  To register online and pay by credit, click here.

Cost: $15.00 includes meeting, proceedings, and lunch.

$20.00 at the door - cash/check only, as the facility does not have the ability to take credit cards. Late fee does not include lunch or proceedings.

Hope to see you there!

PDF 12/3/18
Advances in Walnut Production Short Course (193KB)

Good morning


The University of California Agriculture and Natural Resources and Cooperative Extension is pleased to announce the upcoming Walnut Production Short Course. Over the course of three days, you will learn the latest in research and information involving walnut culture and production. Please see the following link for more information and registration:


Thank you 


Kari Arnold

UCCE Area Orchard and Vineyard Systems, Stanislaus County

3800 Cornucopia Way, Suite A Modesto, CA 95358

Office: (209) 525-6800


PDF 9/18/18
2018 Western Pecan Production Short Course, hosted by New Mexico State University in Las Cruces, NM (706KB)

Short course features:

Three full days in the “classroom” with lectures to cover horticulture, pest control, economics, and related aspects of pecan production from start to finish, plus a full-day field trip to pecan farms.


Cost: $300 short course only, $400 short course and field trip

PDF 7/23/18
Tree Fruit Orchard Tour (513KB)

This tour will explore the use of harvest aids and mechanization for improving efficiency and reducing labor costs in tree fruit production. We will travel to several orchards to see and discuss trellis systems and platforms for harvesting and managing pear, cherry, and apple orchards. Researchers from Washington State University will share results of their work with harvest-assist machines and their effects on productivity, efficiency, and bruising. Researchers and growers will discuss lessons learned from trellis designs and spacing that facilitate mechanization and maximize efficiency.


Special Guests: Matt Whiting (WSU Extension Horticulturist) and Karen Lewis (WSU Tree Fruit Specialist) Organized by UC Cooperative Extension Funding: Calif. Apple Commission, Calif. Cherry Advisory Board, and Calif. Pear Advisory Board 

PDF 6/1/18
Walnut Pruning Trial Field Day (193KB)

Agenda for Walnut Pruning Trial Field Day

PDF 5/8/18
Walnut News & Fruit for Thought (1,831KB)

Spring Issue of Walnut, Grapes, Apricot, and Cherry news. 

PDF 4/13/18
2018 Quad County Walnut Day (211KB)

Agenda for the 2018 Quad County Walnut Day

PDF 2/12/18
February 2015 (229KB)
  • 45th Annual Quad-County Walnut Institute, Thursday, March 12
  • Ground Squirrels
  • Orchard Sanitation
PDF 2/24/15
August 2014 (165KB)
  • Codling Moth Management Meeting
      Thursday, August 14, 2014
  • Field Meeting - Identifying & Managing Bot Dieback in Walnuts
       Thursday, August 21, 2014
PDF 7/30/14
February 2014 (105KB)
  • 44th Annual Quad County Walnut Institute
    Thursday, March 6, 2014 / 8:00 a.m. - 12:30 p.m.
    San Joaquin County Ag Center / Evelyn Costa Assembly Room
    2101 E. Earhart Ave., Stockton, CA 95206 
  • Tree & Vine IPM Breakfast Meetings
    1st & 3rd Wednesdays, March - June
    Old Mill Cafe
    600 9th St., Modesto
    starting March 5, 2014
    7:00 - 8:00 a.m.
  • Orchard Compaction
  • Tree Planting
  • Scale Pests
  • Naval Orangeworm (NOW)
PDF 2/14/14
43rd Annual Quad-County Walnut Institute (76KB) PDF 1/29/13
Tree & Vine IPM Update Breakfast Meetings (104KB) PDF 4/12/12
February 2012 (263KB)

* Quad County Walnut Institute
* Orchard Compaction
* Tree Planting
* Scale Pests

PDF 1/9/12
Low Emissions Nut Harvesting Field Day (233KB) PDF 9/30/11
February 2011 Quad-County Walnut Institute Meeting PDF 2/10/11
July 2009 Ag Technology Field Day & Irrigation & Trade Show Meeting PDF 7/13/09
March 2009 *Tri-County Walnut Institute 03/17/09 *Walnut Blight *Coddling Moth *Ground Squirrels *Orchard Sanitation *Newly Planted Tree Care *Zinc *Pest Hotline *IPM Update Breakfast Meetings Resume PDF 3/2/09
August 2008 Walnut Grower Field Day 08/18/08 DOC 8/8/08
Tree & Vine 24 Hour Pest Phone Hotline The latest development updates on key tree & vine pests. DOC 6/4/08
February, 2008 Walnut News PDF 2/15/08
Tree & Vine IPM Update Breakfast Meetings March 1 - June 21, 2006 DOC 6/27/11
36th Annual Tri-County Walnut Institute DOC 6/27/11
9th ANNUAL NUT INDUSTRY EXPO Stanislaus County Fairgrounds Wednesday, November 9th, 2005 PDF 6/27/11
Fall 2005 Harvest and postharvest topics PDF 4/16/09
2005 Walnut Meeting 35th Annual Tri-County Walnut Meeting Friday, March 25, 2005 PDF 6/12/08
View All

Stanislaus County
University of California Cooperative Extension
3800 Cornucopia Way, Ste. A
Modesto, CA 95358
Phone: (209) 525-6800
Fax: (209) 525-6840

Director: Roger Duncan
roger picture

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