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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

A Fly, Oh, My!

A female Eristalis stipator (as identified by Martin Hauser of the California Department of Food and Agriculture, foraging on tropical milkweed. (Photo by Kathy Keatley Garvey)

A fly, oh, my! On the approval scale, they don't rank nearly as high as honey bees, but some are often mistaken for them. Take the Eristalis stipator, which belongs to the family Syrphidae, the hover flies. It's about the same size as a honey bee and...

Posted on Wednesday, August 16, 2017 at 5:12 PM

Gene Brandi, Speaker at WAS Conference: Managing Honey Bees in California

A varroa mite (reddish-brownish spot at left beneath the wings) is attached to this forager nectaring on lavender. (Photo by Kathy Keatley Garvey)

Varroa mites--considered the No. 1 enemy of beekeepers--will be among the topics discussed when Gene Brandi of Los Banos, Calif., president of the American Beekeeping Federation, speaks at the 40th annual conference of the Western Apicultural Society, to...

Posted on Tuesday, August 15, 2017 at 4:54 PM

Getting Steak and Dessert at the Same Time

A European paper wasp catching prey on a showy milkweed, Asclepias speciosa. (Photo by Kathy Keatley Garvey)

Monarch butterflies aren't the only insects that hang around milkweed, their host plant. You're likely to see a variety of predators, such as the European paper wasp, Polistes dominula. This paper wasp is a little skittish around paparazzi so it helps...

Posted on Monday, August 14, 2017 at 5:07 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

Calendar

Event Name
Date
8/22/2017

UC Blogs

monitoring captioned August 19th is National Honey Bee Day: Dr. Elina NiƱo reminds us to help honey bees cope with pests
Posted 8/17/2017 - National Honey Bee Day is celebrated on the third Saturday of every August. This year it falls on Saturday the 19th. If you use integrated pest management, or IPM, you are probably aware that it can solve pest problems and reduce the use of pesticides...

Salton Sea. Photo courtesy of NASA New dust sources resulting from a shrinking Salton Sea have negative ecological and health impacts
Posted 8/8/2017 - UC Riverside study shows soils once submerged under the sea and airborne particulate matter are high in sodium and selenium Scientists at UC Riverside investigating the composition of particulate matter (PM) and its sources at the Salton...

There is no known treatment for huanglongbing, which kills citrus trees. How to check your citrus trees for a deadly disease and the pest that spreads it
Posted 7/28/2017 - The incurable citrus tree disease huanglongbing, or HLB, has been detected in Los Angeles and Orange counties and most recently in Riverside. The citrus disease is spread from tree to tree by Asian citrus psyllids, the insects that move...

Joanne O'Sullivan is one of the scouts hired by UC to search for and collect Asian citrus psyllids. UC has boots on the ground in an unrelenting search for Asian citrus psyllid
Posted 7/28/2017 - With two magnifying loops around her neck and a truck stocked with vials and tools for insect collection, Joanne O'Sullivan scouts Ventura County citrus orchards every day. She walks the perimeter, examining newly emerging leaves and tapping branches...

UCCE ag engineer Ali Pourreza views the virtual orchard on his computer. UC scientist gives orchards a whole new color scheme
Posted 7/25/2017 - For centuries, farmers have used all the colors of the rainbow to assess their orchards: The bright pink of blossoms in springtime, the vibrant green of heathy leaves, the red blush on fruit ready to harvest. However, there are wavelengths beyond what a...

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