Sudden Oak Death Program
Participate in the 2023 SOD Blitz!
May 11 - 31, 2023
*no later than May 24th to receive packets by mail
Click the links below to join a docent-led SOD Blitz:
Bohemia Ecological Preserve (Occidental) 9am-1pm on Thursday, May 11 *bilingüe en español
Riddell Preserve (Healdsburg) 9am-2pm on Friday, May 12 *bilingüe en español
Fairfield Osborn Preserve (Penngrove) 10am-1pm on Saturday, May 13 *bilingüe en español
Galbreath Preserve (Anderson Valley, Mendocino County) 9:30am-1pm on Monday, May 15
QUESTIONS? Register to attend a virtual Q&A event with Kerry on Thursday, May 11 from 5-6pm
Interested in holding a private blitz event for your 6-12 grade class? HOA? Club or non-profit group? Contact Kerry! kwininger@ucanr.edu
2022 SOD Blitz Results Meeting
Hear blitz results from Dr. Matteo Garbelotto (UC Berkeley Forest Pathology & Mycology Lab) and get your questions answered! Links to blitz results & maps and information are on the SOD Blitz project site: www.sodblitz.org
2020 SOD BLITZ RESULTS
Over 3,900 trees in Sonoma and Mendocino counties were surveyed in 2020. See the full table of SOD Blitz Results here.
| Surveyed Trees | Symptomatic Oak Nearby | Sampled Trees | SOD Positive Sampled Trees | Estimated True Infection Rate | Symptomatic Trees Surveyed | |
| Mendocino | 596 | 17.6% | 142 | 11.3% | 6.3% | 55.5% |
| Sonoma-West | 490 | 7.2% | 69 | 27.5% | 5.1% | 18.4% |
| Sonoma-North | 128 | 3.2% | 31 | 35.5% | 5.0% | 14.1% |
| Sonoma-East | 2707 | 8.5% | 189 | 30.2% | 8.3% | 27.7% |
Video: SOD in Sonoma County
AERIAL SURVEY for TREE MORTALITY 2019
SOD Results Map 2020
SOD Program Posters
Click on images to enlarge