Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

UC Cooperative Extension

Cleaning Up Wildfire Ash Safely

You can avoid many health hazards from wildfire ash following these tips from California Department of Public Health, found online here

or you can download and print this flier Cleaning Up Wildfire Ash Safely CDPH 7 Aug 2018


ACP (Asian citrus psyllid) found in San Joaquin county

The ACP (Asian citrus psyllid) was found in Lodi and Manteca.  Click here to find out how you can help prevent the spread of this unwanted pest and what to do if you think you have it.

Who We Are

Across California, the University of California’s 64 Cooperative Extension offices are local problem-solving centers. We are the bridge between local issues and the power of UC research. Our county-based staff is part of the community – we live and work in the areas we serve.

More than 300 campus-based specialists and county-based farm, home and youth advisors work as teams to bring practical, unbiased, science-based answers to problems across California.

As part of the agricultural community, we help farmers develop more-efficient growing methods, solve pest management problems and develop crops and irrigation methods that use less water.

As stewards of the land, we help develop smart water-use strategies, develop wildfire education and help preserve natural areas and farmland.

As advocates for healthy communities, we promote healthy diets and exercise for better health, help Californians learn to choose the most nutritious foods and help shape the citizens of tomorrow through the 4-H Youth Development Program.

And thousands of volunteers extend the reach of our work through the Master Gardener Program and the California 4-H Youth Development Program.

We work in full partnership with federal, state, county and private resources.

We are stewards, problem-solvers, catalysts, collaborators and educators.

We are UC Cooperative Extension.

UC Blogs

Drum Roll...First Bumble Bee of the Year!

Check out the pollen on this black-tailed bumble bee, Bombus melanopygus, nectaring on manzanita, as photographed by Kim Chacon, UC Davis doctoral candidate on Jan. 10.

We have a winner! Several UC Davis bumble bee enthusiasts--encouraged by native pollinator specialist Robbin Thorp, UC Davis distinguished emeritus professor of entomology--compete every January to find the first bumble bee of the year in Yolo and...

What, Santa Didn't Bring You a Tarantula for Christmas?

Mexican redknee tarantula, the new project of 9-year-old Delsin Russell of Vacaville. Santa delivered the much-wanted gift on Christmas Eve. (Photo by Kathy Keatley Garvey)

Doesn't Santa give everyone a Mexican redknee tarantula for Christmas? Oh, you didn't get yours? Well, Delsin Russell, 9, of Vacaville, did, and he and his mother journeyed Saturday, Jan. 12 to the Bohart Museum of Entomology open house on the...

Kira Meets a Stick Insect

Kira Olmos, 5, of Winters isn't sure she wants meet an Australian stick insect at the Bohart Museum. She is holding mom's hand. (Photo by Kathy Keatley Garvey)

When you're five years old and just learning about the world around you and its inhabitants, it's okay to be a little apprehensive when you encounter a giant prickly stick insect with thornlike spikes. Even if your mother is holding it. Such was the...

Posted on Tuesday, January 15, 2019 at 5:10 PM

Make a Gift Online

Brent A Holtz Ph.D.


San Joaquin County Cooperative Extension
Robert J. Cabral Ag Center

2101 E. Earhart Avenue, Ste 200, Stockton, CA 95206
Phone: (209) 953-6100
Fax: (209) 953-6128
Click here for a map

Ag Center May 2008


Event Name

UC Blogs

All California Naturalists use the iNaturalist app. Documenting urban nature in the City Nature Challenge
Have you ever been on a walk and observed an interesting plant you couldn't identify? Encountered an unusual insect trapped in your home? Have you wondered why you used to see certain species in nature and you don't now? Or have you thought it might be...

The exotic soilborne Phytopthora cinnamomi was introduced in the Ione area of the Sierra Nevada foothills, where it is literally wiping out two native manzanita species. This picture shows how vehicles spread the pathogen along roads and tracks by kicking up infected soil, killing nearby manzanita. (Photo: Matteo Garbelotto) Is habitat restoration actually killing plants in California wildlands?
In 2014, plant biologists with the California Department of Agriculture reported an alarming discovery: native wildflowers and herbs, grown in nurseries and then planted in ecological restoration sites around California, were infected...

Remnants of a burned trailer park in Paradise after the Camp Fire. What can we learn from the 14,000 homes lost during the Camp Fire?
Shades of brown and grey cast over bricks, cement, remnants of metal roofs and steel beams from manufactured and modular homes, collapsed stucco walls, BBQs, shells of washers and driers, along with an occasional tea pot — that is what you can...

Participants constructed a simple potted plant with marigolds, chrysanthemums and mint varieties to adorn their spring celebration tables. (Photo: Debbie Handal) UC Master Gardeners partner with Alzheimer's San Diego in Reminiscence Gardening project
The UC Master Gardener Program of San Diego County has always been open to innovative ways of expanding its mission and passion for gardening into new parts of its community. The San Diego program has a rich history of successful partnering with other...

Landowners at a UCCE prescribed fire training are 'holding' the fire on the left side of the fire line that was cut using rakes and other hand tools. The landowner on the far left is firing the burn unit with a drip torch. (Photo: Ames Gilbert) Can rakes save forests? Yes, as long as you have a drip torch in the other hand
The humble rake has been in the spotlight in recent weeks, and its role as a forest management tool ridiculed and scorned. However, most fire professionals believe rakes are a necessary part of saving California's forests. Those who are familiar with...

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