- Author: Kerry Wininger
The dichotomy is real. Annually since 2006, Garbelotto's Lab has run a successful state-wide citizen science “SOD Blitz” campaign in each infested or at-risk California county; UCCE Sonoma coordinates this county's efforts. Volunteers in the community, from high schoolers to retirees, collect symptomatic leaves of the two trees most likely to spread the disease to oaks, California Bay Laurel and Tanoak, then Garbelotto's lab tests them. Results from the most recent Blitz show the largest increase in cases of Bay and Tanoak infections by Phytophthora ramorum, the causal agent of SOD, since the surveys began3.
What you can do:
The estimated true infection rate of Sonoma county trees more than doubled since just last year. A new outbreak has appeared in the coastal area of northern Sonoma County, and infections have re-emerged in areas from which the disease had previously retreated during the drought. Further afield is the most striking, and discouraging, discovery from last year's Blitz – multiple infections were detected in San Luis Obispo, more southerly than ever previously documented, paving the way to add a 16th county to those listed as infected in the state. Infection was also observed in the hot eastern vicinity of Ukiah for the first time, startling researchers who are accustomed to the pathogen's preference for moist, cool areas. Other findings include two new possible host species in the San Francisco Botanical Garden at Strybing Arboretum, the first detected infections on Mt. Diablo in Contra Costa County, and an outbreak in southern coastal Mendocino County.
On the upside, substantially more trees were tested during this last blitz than in recent years, novel areas were sampled, and new participants joined the ranks of Citizen Scientists. New treatment recommendations out of the Garbelotto Lab show promise in helping individual trees more safely and effectively decrease their chances of infection if done so before exposure to the pathogen4.
Why should land owners and managers, businesses, and the public care? Sudden Oak Death poses many apparent threats as well as those that are less obvious. The dramatic loss of oaks and tanoaks impacts biodiversity, nutrient and water cycling, forest microclimate, wildlife, and erosion. There is the potential for increased fire risk and severity in areas with dead and downed trees, creating a safety hazard (Forrestel et al. 2015). Recreation in forests is altered (Kliejunas 2010). Traditional cultural practices are impacted. Even human health concerns such as transmission of Lyme Disease have the potential to increase (Swei et al. 2010). Lastly, economic consequences of SOD to land owners, municipalities, nurseries, and industry are estimated in the tens or even hundreds of millions of dollars (US GEO 2006).
Now, more than ever, it's important for scientists, educators, professionals, and the community to come together. Though the news is disheartening, and attention may be elsewhere, collectively we can help slow the spread and cope with this disease that threatens to unhinge native California ecosystems and all that they impact.
Kerry is the new Sudden Oak Death Program Coordinator for UCCE Sonoma County, “I enthusiastically follow in the footsteps of the esteemed Lisa Bell, and am already in awe of the great work the Master Gardener SOD team does. I am eager to help get the word out about this challenge and how to face it, and hope to implement new ideas related to SOD content in environmental education and trainings for tree care professionals.” Kerry has an undergraduate degree in Biology from UC Berkeley, and has worked with various environmental organizations as a researcher, educator, naturalist, and communicator while pursuing a Masters Degree on SOD and insect herbivores of bay at Sonoma State University. She has presented research at conferences, such as last summer's SOD6 Symposia in San Francisco that garnered international attention5, and the California Forest Pest Council Annual meeting that this year focused much more on drought-induced beetle attacks in the Sierras than it did on SOD6.
If you are interested in learning more or getting involved, please contact Kerry Wininger firstname.lastname@example.org.
1. Drought slows spread of sudden oak death in Sonoma County, The Press Democrat, Sept 29, 2015
2. Sudden oak death in Sonoma County explodes, thanks to winter rains, The Press Democrat, Oct 18, 2016
3. Largest Sudden Oak Death Expansion in California in a Decade, CA Oak Mortality Task Force, Oct 14, 2016
4. SOD Disease Management, UC Berkeley Forest Pathology & Mycology Lab, Oct 20, 2016
5. SOD 6th Science Symposium, UCANR, June 21-23, 2016
7. SOD, UC Master Gardener Program of Sonoma County
8. TreeFAQs, UC Berkeley Forest Pathology & Mycology Lab
Forrestel, AB, Ramage, BS, Moody, T, Moritz, MA, Stephens, SL. 2015. "Disease, fuels and potential fire behavior: Impacts of Sudden Oak Death in two coastal California forest types." Forest Ecology and Management, 348: 23-30.
(GAO) US Government Accountability Office, 2006. Invasive Forest Pests: lessons learned from three recent infestations may aid in managing future efforts. Report from the United States Government Accountability Office to the Chairman, Committee on Resources, House of Representatives.
Kliejunas, JT. 2010 Sudden oak death and Phytophthora ramorum: a summary of the literature. US Department of Agriculture, Forest Service, Pacific Southwest Research Station: General Technical Report PSW-GTR-234.
Swei, A; Ostfeld, RS.; Lane, RS.; Briggs, CJ. Oecologia. 2011. Effects of an invasive forest pathogen on abundance of ticks and their vertebrate hosts in a California Lyme disease focus. 166(1):91-100.
- Author: Karen Giovannini
Speakers include Dietrich Gehring of Indian Ladder Farmstead Cidery & Brewery in Altamont, New York and author of The Hop Grower's Handbook; Rohit Nayyar, Dean Peckham, and Jaspaul Bains founders and owners of United Hops in Yuba City; Christian Toran, Head Brewer of the new sustainability-focused Seismic Brewing Company; and several others.
A panel of local hop growers will discuss small-scale hop farming; and a panel of local hop brewers will discuss their needs and brewing with fresh hops; and at the end of day, a field trip to Redwood Hill Farm's new hopyard.
You also have a chance to view the new SRJC educational brewing program equipment at Shone Farm.
Read When Hops was the 'King of Crops' an historical account of hops in Sonoma County, with some wonderful photos, written by Gaye LeBaron for The Press Democrat February 2016 (note the date for last years workshop is included).
$45.00 if paid by 3/17; $65 after 3/17.
***SPACE IS LIMITED, WE EXPECT TO SELL OUT***
Registration closes at 9 am Thursday, March 23.
Doors open at 8 am, presentations begin at 8:30.
Coffee and snacks in the morning and
catered lunch following the malt beverage tasting.
|Taste beverages from single hop varieties
- Editor: Karen Giovannini
We make a living by what we do, but we make a life by what we give.
In 2012 I had a life changing experience, I contracted a very rare flesh eating bacteria and almost lost my life. After being airlifted to Children's hospital in Oakland, I spent the summer there having 14 surgeries. While I was in the hospital, I was overcome by the generosity of our community and complete strangers. I reaped the many benefits of donated items while in the hospital. In addition, our community rallied around to support me and help my family in ways that were unimaginable. Even though I had previously been active in community service activities, this incident made service an even bigger priority in life. I think giving back to the community is not only self-fulfilling but also a way for me to say thank you to those that helped me. Now I hope that I can help make a positive change in someone elses life and improve community conditions.
Community Service Project: Missy's Homeless Survival Pack Drive
Right now as we are experiencing a much earlier wet and cold winter, there's a huge need for tarps, sleeping bags, rain ponchos, rain boots, shoes, umbrellas, backpacks, hats, gloves, jackets...anything to keep people warm and dry.
Catholic Charities Family Support Center
465 A Street
Also if you'll mention that this is being donated on behalf of Missy's Homeless Survival Pack Drive, that would be helpful. Catholic Charities is able to help provide shelter & housing for over 2500 homeless men, women and children. Unfortunately, there are many that are on a waiting list and are unable to seek shelter. These packs will be distributed to those individuals to help keep them warm during these inclement conditions. Share this flier for Missy's Homeless Survival Pack Drive at your work.
- The average age of residents in the family shelter is 12 years old
- Over 500 children and youth under the age of 24 called Catholic Charities home last year
- For every child they housed, 4 more were on the shelter waiting list
- 1 in 50 children in the US are homeless (~1.5 million children total)
For more information about their services, please visit Catholic Charities./span>
- Author: Mariska Obedzinski
With the early rains, UC biologists began detecting adult coho in the Russian in October this year, with an estimated count of 326 passing through the mainstem of the river at Duncans Mills as of December 1 (see Tables 1&2 below for information on release groups). Though it's still early in the season, this year's estimate is already much higher than last year's total of 192 returning adult coho.
Despite the fact that the tributaries became connected to the mainstem in late October, we have only started seeing adults spawn in the tributaries during the last couple of weeks. UC and the Water Agency have now completed three rounds of redd surveys on Coastal Monitoring Program reaches in 26 Russian River tributaries and the majority of the spawning activity was observed last week in the Dry Creek watershed (see map below).
And there is some exciting news on Mill Creek! As a result of a passage barrier remediation project implemented by Trout Unlimited, Prunuske Chatham, Inc, National Ocianic & Atmospheric Administration, California Department of Fish & Wildlife, and Sonoma County Water Agency this past summer, adult coho are now able to access 11 miles of prime spawning and rearing habitat upstream of a former flashboard dam. Learn about the Mill Creek project.
Mill Creek Coho Spawning:
Chinook Salmon in Pena Creek:
To learn more, visit Monitoring Salmon and Steelhead in the Russian River.
- Author: Karen Giovannini
In the interest of a very tasty Thanksgiving feast, we challenge you to use local produce, meats and value add products as much as possible.
If you are fortunate enough to live in or have the opportunity to visit and shop in Sonoma County, visit the Farm Trails site to Find Our Farms & Produce by Criteria and California Cheese Trail. Both include maps and Farm Trails site lets you search by a variety of criterion including product type, region, method and more.
It is entirely possible to create a traditional, or un-traditional, Thanksgiving dinner using all local products (well, except the cranberries). Fresher products, reduced carbon footprint and supporting our agricultural heritage are just a few of the benefits of locally sourcing your meals. Your taste buds will thank you.
Happy Thanksgiving from UCCE Sonoma County!