San Mateo & San Francisco Counties

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Amy Rathbone is feeling lucky to collaborate with Mendocino forestland

March 28th, 2025
This interview concludes our Women’s History Month series- view three more interviews with women landowners on the blog home page! Every Forest Stewardship Workshop participant has their own, unique relationship with forests. For Amy Rathbone, purchasing a parcel of forestland with her husband meant…
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Picture of meadow restoration.
Article

For Joy Jackman, restoring forestland is a decades-long dream come true

March 27th, 2025
By Grace N Dean
 This interview is part of our Women’s History Month series- check back this week for stories from female forest landowners to inspire your forest stewardship journey! Forests have been a part of Joy Jackman’s life since college, where she spent three summers as a US Forest Service forestry…
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Picture of a mixed conifer forest
Article

Step by step, Julianna Olate is creating a healthier and more resilient forest

March 26th, 2025
By Grace N Dean
This interview is part of our Women’s History Month series- check back this week for more stories from female forest landowners to inspire your forest stewardship journey! Julianna Olate has stewarded forestland in Del Norte County since 2008, managing her own 80-acre parcel and her neighbor's 160-acre…
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Valley oak tree atop a hill of brown grass.
Article

Webinar: Mediterranean Oak Borer and Other Oak Pests

March 26th, 2025
By Lauren Fordyce
Join UC IPM for a free webinar on the invasive Mediterranean Oak Borer (MOB) and other important oak tree pests on April 10, 2025 from 6:00pm to 7:30pm. The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak,…
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Rod Stiefvater speaks at a Department of Plant Sciences seminar
Article

Gift extends UC Davis pistachio research on new scions, rootstocks

March 6th, 2025
By Emily C. Dooley
The University of California, Davis, is enhancing and expanding its Pistachio Breeding Program after a generous gift from philanthropist and pistachio farmer Rod Stiefvater, who is donating more than $335,000 over three years to develop new rootstocks that thrive under changing climate conditions.
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Hand turns on a tap with water splashing out of a glass
Article

Survey: Water system consolidations improve water quality, infrastructure

February 28th, 2025
By Michael Hsu
Kristin Dobbin, a UCCE specialist, is studying the consolidation of water systems, which can entail creating physical connections (such as pipelines) between water systems or administrative mergers that leave the physical infrastructure unchanged. Water system consolidation has become a top solution in…
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A shepherd and dog move sheep across a field
Article

California producers: Climate change is real; we could use a little help

February 26th, 2025
By Trina Kleist
How can farmers and ranchers continue to grow our food while facing challenges of a changing climate, increasingly scarce water, land use pressures and rising costs? UC and UC ANR scientists are using surveys and interviews with people in the state's agricultural sector to learn what folks need to stay…
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A person wearing rubber gloves using a spray bottle to spray pesticide on a rose bush outside.
Article

Tips for Using Pesticides Safely

February 24th, 2025
By Lauren Fordyce
At UC IPM we recognize pesticide safety education every month, but February in particular is National Pesticide Safety Education Month! Below are some simple tips for using pesticides safely to protect yourself, others, wildlife, and the environment.
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What is an invasive species?
Article

National Invasive Species Action Week 2025

February 24th, 2025
From February 24 - 28, 2025, help increase public awareness of invasive species and join the fight against invasive species by participating in National Invasive Species Action Week (NISAW).
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Medical entomologist Bruce Eldridge in 2007. (Photo by Kathy Keatley Garvey)
Article

Entomology World Mourning the Loss of Bruce Eldridge

February 21st, 2025
The entomology world is mourning the loss of UC Davis Professor Emeritus Bruce Eldridge. As a medical entomologist, his exemplary military, academic and administrative career spanned more than six decades. He died Wednesday, Feb. 5 in Davis at age 91. Dr.
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Person dumping a white bucket of water outside.
Article

Drain After Rain to Prevent Mosquitoes

February 20th, 2025
By Lauren Fordyce
Recent rainfall throughout much of California has created puddles and stagnant water. With the temperature warming up in many parts of the state, this combination can create the perfect situation for mosquitoes to breed. We encourage you to drain after the rain to reduce mosquito-breeding sites.
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A honey bee pollinating an almond blossom. (Photo by Kathy Keatley Garvey)
Article

Tough Time for Beekeepers and Almond Growers

February 19th, 2025
It's a tough time for beekeepers and almond growers during California's almond pollination season. There's a nationwide bee shortage, rapidly increasing hive thefts and often uncooperative weather.
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What is Cooperative Extension?

The University of California Cooperative Extension (UCCE) Offices are local problem-solving centers, part of a statewide network of UC researchers and educators who bridge UC research with the communities we serve. Our Advisors and Community Education Specialists deliver a range of locally relevant programs focusing on farm, environment, nutrition, 4-H youth development, science literacy, urban agriculture, home and commercial horticulture. We deliver science-based information through public workshops, meetings, newsletters, and mass media communication tools to local communities. In addition, our Advisors and Community Educator Specialists collaborate on partnerships with government agencies and community-based organizations to extend the reach of our programs. 

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Office Locations

UC Cooperative Extension SMSF: Main Office

1500 Purisima Creek Road
Half Moon Bay, CA 94019
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Mission Statement

Help the residents of San Mateo and San Francisco Counties improve their lives by providing timely, actionable, and locally relevant science-based advice on issues in agriculture, natural resources and environmental management, horticulture, nutrition, pest management, and youth development and education.
• We are practical – focusing for over 100 years on the specific, local, needs of our residents
• We are connected – leveraging the vast expertise of the University of California to find solutions
• We are trusted – responding to the complex local technical and policy challenges with unwavering commitment to transparency, science, and empathy
We are UC Cooperative Extension San Mateo-San Francisco and UC Elkus Ranch;
part of the University of California Division of Agriculture and Natural Resources