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Sudden Oak Death

Fall 2019 SOD Info and Training Events - FREE!

CLICK HERE FOR FULL INFO:  Fall 2019 SOD events flier


SOD Blitz Results Meeting 

Tuesday, November 12, 6-8pm, UCCE Sonoma Office, 133 Aviation Blvd #109, Santa Rosa

REGISTER:  ucanr.edu/2019SODBlitzResultsMeeting


SOD Training Workshops -- ISA CEUs applied for!

1) Monday, November 18, 10am-3pm, UCCE Sonoma Office, 133 Aviation Blvd #109, Santa Rosa

REGISTER:  ucanr.edu/SODTrainingWorkshopSantaRosa


2) Tuesday, November 19, 10am-3pm, Mendocino Coast Botanical Gardens,18220 CA-1, Fort Bragg

REGISTER:  ucanr.edu/SODTrainingWorkshopFortBragg


Questions or need to cancel? Contact Kerry at kwininger@ucanr.edu

Thank you for making the 2019 SOD Blitzes a success!

*Check back in Spring for 2020 SOD Blitz dates & locations*

Past information about spring 2019 Blitzes:
Test your trees for free!
Monitor disease spread in a rainy year, be on the lookout for new dangerous strains, and test oaks for SOD with OakSTeP
Things are not "as usual." Come learn to:
  • Identify symptoms of SOD on bay laurel, oaks, and tanoak
  • Collect symptomatic leaves from bay laurel and tanoak to be analyzed at NO COST
  • Make important contributions to science
  • Visit and help your local park or preserve
New this year:
- Leaves will be tested for the new and aggressive EU1 pathogen strain. Already in Oregon
forests, we need to look for it in California to have a chance of eliminating it if found.
- Introducing the OakSTeP program that will provide an easy and affordable way for licensed arborists, tree care specialists, preserve mangers and qualified government workers to test oaks for SOD. Join the OakSTep program for FREE if you register in person during a SOD blitz ($200 value), and get priority for sample processing.
- Thinking of doing something to control SOD, or have done so already? We'll have a questionnaire and important information and tips at the trainings.
- El Fairfield Osborn Preserve blitz es un evento bilingue (Inglés y Español)
Six meetings took place this year in Petaluma, Yorkville (docent-led at SSU'sGalbreath Preserve), Sebastopol, Santa Rosa, Sonoma, and Penngrove (docent-led at SSU's Osborn Preserve) from April 25th - 27th.
The Osborn Preserve blitz in Penngrove was a bilingual event (English & Spanish) / Este es un evento bilingue (Inglés y Español) 
Unless otherwise noted, SOD blitz evens consist of a one-hour training, then you collect leaves at locations of your choice and drop them back at the meeting site that weekend. We drive leaves to UC Berkeley Lab for analysis on Monday. You get results in early fall.
There is no cost for this activity. Hosted by the UC Master Gardener Program of Sonoma County SOD Specialists and the University of California Cooperative Extension, Sonoma County. Funding provided by the USDA Forest Service. 
KRCB News Story -- Gathering Leaves: Sudden Oak Death Research

In collaboration with the University of California and The Center for Environmental Inquiry at Sonoma State University, citizen scientists in Sonoma County are collecting bay laurel leaves to assist in controlling the pathogen responsible for Sudden Oak Death.

<img src="//ucanr.edu/media/sb3287796.png" alt="Image from Flash Video" />

Gathering Leaves (for show)

Published by KRCB North Bay Public Media. Also available at the following link:




Over 2,200 trees were sampled in Sonoma County. See Results here.


Video: SOD in Sonoma County