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Past Newsletters (pre-2021)

Topics covering winegrape production including Integrated Pest Management

Issue Articles Type Date Added
Airblast Sprayer Webinar - March 29+30, 2021

Register now for a two-day webinar that provides participants with practical information to maximize the effectiveness and efficiency of using air-assisted sprayers used in orchards, vineyards and some bush crops.

The course is held from 11:00 am to 2:30 pm on March 29th & 30th. Registration cost is $50 before March 22, and $75 after that.

For more information and to register, see:


CEU hours have been requested.

PDF 3/2/21
UCCE North Coast Virtual IPM Seminar

The 23rd Annual UCCE North Coast IPM Seminar has gone digital! Join us:

  • December 3rd and 4th, 2020
  • 7:45am-12:15pm both days
  • CA DPR CE Hours Approved:
    • 2 hours of Laws and Regs
    • 6 hours of Other

Agenda and Registration: http://ucanr.edu/NCIPM2020

PDF 11/13/20
Upcoming Bigelow 589 Training

Upcoming Bigelow 589 Training

UC Cooperative Extension is offering a Water Measurement and Reporting Course in Sonoma and Mendocino Counties on November 12, 2019.  This newsletter explains what the course is, who should attend and how to register.


PDF 11/1/19
October 2019

October 2019 Newsletter

  • Should you drop unsold fruit or leave it on the vine?
PDF 10/11/19
April 2018

April 2018 Newsletter

  • Water Measurement and Reporting Course:
    AB 589, Bigelow. Water diversion: monitoring and reporting training - UCCE Sonoma
  • Updated list of Diagnostic Laboratories
PDF 4/23/18
May 2017

May 2017 Newsletter

  • Spring Insect Chewing Damage
  • Announcements
PDF 5/12/17
April 2014

April 2014 Newsletter

  • Announcements
  • FREE Publications from UC Agriculture & Natural Resources
  • Online temperature inversion data for sites in the Russian River
PDF 4/25/14
September 2013

September 2013 Newsletter 

PDF 9/19/13
December 2012

December 2012 Issue 

• 2013 Sonoma County Grape Day
• Regulating Water Quality in North Coast Vineyards: One Conditional Waiver is Proposed and a Second is Under Development

PDF 12/31/12
December 2011

December 2011 Issue

• 2012 Sonoma County Grape Day
• Botrytis, Powdery Mildew, and Fungicide Resistance

PDF 12/23/11
January 2011: Beyond Sunburn

January 2011 Newsletter

• Sonoma County Grape Day • Beyond Sunburn • Historical Local Temperatures • Gopher Control

PDF 1/14/11
UC Meetings on European Grapevine Moth UC Cooperative Extension will hold meetings WITHIN THE NEXT FEW DAYS in Sonoma County PDF  
December 2009: Water rights and Grapevine Leafroll disease

• Viticulture Newsletter is online only • Exotic insect Pest found in Napa • Water rights in the Russian River watershed • Grapevine leafroll disease is worth avoiding

PDF 1/25/12
December 2007: Composting Grape Pomace •Compost grape pomace to remove risk of spreading mealybugs PDF  
March 2006: Powdery Mildew Control

•Meeting Announcements •Mealybug Information •Early Season Powdery Mildew Infections •Volatile Organic Compounds: What they are and how do they work

PDF 5/4/20
April 2005: Trapping in 2005 for Vine Mealybug in Sonoma County •VMB trapping program in Sonoma County •Programs in other counties •UCCE will not read traps, but traps will be available! •Which Mealybug is it? •Two training opportunities provided by UC Cooperative Extension •Coordinating your VMB trapping efforts •More Information available online PDF  
May 2004: Vine Mealybug Trapping Season

•Vine Mealy Bug 2004 Trapping Season •Water Quality Regulations for Applied and Storm Water Management

PDF 5/4/20
January 2005: Esca and Young Esca Disease •Sonoma County Grape Day - February 23, 2005 •Courses in Viticulture and Enology •New Sonoma County Vineyard Cost Studies •Research Update on Esca and Young Esca PDF  
January 2004: Protecting Grapevine pruning wounds from infection •New office location •Sonoma County Grape Day - February 24, 2004 •Protecting Grapevine pruning wounds from infections PDF  
September 2002: Vine Mealybug •Vine Mealy Bug in Sonoma County •Spread by plant material and equipment •Control •Trapping •What you can do and what to look for •What happens if you find Vine Mealybug PDF  
December 2001: Young Vine Decline Update

•Sonoma Grape Day - February 07, 2002 •Young vine decline update •CDFA Pierces' Disease Control Program •Publications

PDF 5/4/20
December 2000 - Manual: Riparian Vegetation Mangagement for PD

•Sonoma County Grape Day is February 16, 2001! •New publication available. •No Surflan?

PDF 5/4/20
March 2000: Glassy-Winged Sharpshooter Increases Threat of Pierce's Disease •Glassy-Winged Sharpshooters will Increase the Threat of Pierce’s Disease •How GWSS will Change PD in California •Increased Potential for Spread of New Diseases •Early Detection of GWSS by Grape Growers •Preventing the Spread of GWSS •GWSS Host Plant List PDF  
July 1999: Managing Riparian Vegetation to Control Pierce's Disease

•Announcements •Managing Riparian Vegetation to Control Pierce’s Disease •039-19 and 043-43 Rootstocks Mixed Up for a Period of Time •Powdery Mildew Resistance Management •Categories of Grape Powdery Mildew Fungicides by Activity •Predicting Yield in Winegrapes

PDF 5/4/20
December 1998 : Phylloxera Planting Survery Results •Leaf-gall Forming Phylloxera •Phylloxera & Planting Survey Results PDF