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

UC Cooperative Extension

ACP (Asian citrus psyllid) found in San Joaquin county

AsianCitrusPsyllid1
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

'The Astonishing Ant Man' Jack Longino to Speak at UC Davis

A side view of the new ant species Eurhopalothrix zipacna that Jack Longino discovered in Central America. (Photo by Jack Longino)

John "Jack" Longino knows his ants. "We share the planet with millions of species, and many of them are insects," says Longino, professor and associate chair of biology at the University of Utah, Salt Lake City, and the adjunct curator of...

Posted on Thursday, May 21, 2015 at 2:28 PM
Tags: Alex Wild (13), ants (9), Jack Longino (1), Phil Ward (15), seminar (6), UC Davis (53), University of Utah (1)

Wasp Love!

A European paper wasp, Polistes dominula, foraging for food. (Photo by Kathy Keatley Garvey)

"Wasp love." You don't hear those two words often, but you'll hear them often from Amy Toth, who's hoping that the hashtag, #wasplove, will draw attention to the wonderful world of wasps. Toth, known for her work on bee and wasp behavior,genomics, and...

Posted on Wednesday, May 20, 2015 at 4:35 PM

The Wonderful World of Bugs

UC Davis entomology graduate student  Jéssica Gillung engages Griffin Shepherd, 7, of Winters, as she talks about a rose-haired tarantula. (Photo by Kathy Keatley Garvey)

Forget about “fun and games.” Think  “fun and names.” The open house at the Bohart Museum of Entomology at the University of California, Davis, last Sunday afternoon  focused on the theme, "Name That Bug! How About...

Posted on Tuesday, May 19, 2015 at 4:52 PM

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Director:
Brent A Holtz Ph.D.

1040

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
e-mail: cesanjoaquin@ucdavis.edu
Click here for a map

Ag Center May 2008

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UC Blogs

People and cattle can peacefully coexist on working rangelands. (Photo: Pixabay) People and cattle can share open space
Posted 5/7/2015 - When a hiker on a San Francisco Bay Area parkland unknowingly walked between a cow and her calf, the mother came over, knocked the hiker down and stepped on him. In another incident, a woman walking her dogs off leash was chased by cows. She slipped and...

An adult honey bee on a white clover blossom.  Photo by Jack Kelly Clark Bee kind to pollinators – Use integrated pest management to reduce pesticide use
Posted 5/6/2015 - The importance of pollinators – such as bees, butterflies, moths, and hummingbirds – is becoming more widely known. Bees pollinate approximately 35 percent of the food we eat. Pollinators as a whole are worth about $15 billion to the...

Fuller rose beetles emerged and laid eggs throughout winter 2014-15. Usually their development is slowed by cold winter weather. Mild winter gave agricultural pests a head start in 2015
Posted 5/5/2015 - San Joaquin Valley farmers are facing an unusually high pest population this spring due to the milder than normal winter, and rapidly warming spring conditions, says a UC Agriculture and Natural Resources entomologist. “I've never seen this happen...

Rubicon River, El Dorado National Forest King Fire provides learning opportunities
Posted 4/29/2015 - Over a dozen UC Agriculture and Natural Resources (UC ANR) California Naturalists, fire ecology experts, wildlife biologists, resource managers, educators, and artists met at UC Berkeley's Blodgett Forest Research Station and the adjacent El Dorado...

Mulch conserves water around the base of a tree. Help an oak tree tolerate severe drought
Posted 4/24/2015 - With California's continuing drought, many trees are showing signs of water stress. UC Agriculture and Natural Resources tree experts have been hearing from homeowners who are concerned about the effects of the drought on valued oak trees in their...

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