Ongoing research

Flannel bush flowers
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Fruit Report

This website contains useful horticultural information about establishing and managing fresh market peach, plum and nectarine orchards. It has been developed by University of California scientists and others specifically for California growers. The site is maintained by Kevin R.
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Placer County 4-H 2855 2nd Street Auburn CA 95603
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Placer County 4-H

Welcome to the Placer County 4-H Program, we have approximately 500 youth enrolled in local 4-H programs and nearly 120 adult volunteers engaging youth in varied learning experiences. There are ten clubs in the county. Our mission is to engage youth in reaching their fullest potential while advancing the…
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river
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UC Cooperative Extension Trinity County

Partnerships for ProgressUniversity of California Agriculture and Natural Resources brings the power of UC research and education to all 58 California counties. By providing expertise and fostering partnerships in agriculture, natural resources, wildfire resilience, nutrition, and youth development, we work…
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Master Gardener Great Tomato Plant Sale at Our Garden
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Contra Costa County Cooperative Extension

The University of California Cooperative Extension Contra Costa County delivers high quality education and research programs that contribute to: Safe, healthy and accessible food Clean water and a healthy environment Improved nutrition habits and well-nourished residents Healthy youth who contri...
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Academic Assembly Council

Welcome to the official web site for the University of California Academic Assembly Council. The mission of the Assembly Council is to provide a forum to enhance the impacts of Cooperative Extension programs and address the professional needs of Cooperative Extension academic employees.
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Annual Range Forage Loss

Estimating the Cost of Replacing Forage Losses on California Annual Rangeland Valuable forage is often lost on annual rangelands because of wildfires, cultivation, and other disturbances.
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Flannel bush flowers
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Master Gardeners of Shasta County

The mission of the Master Gardeners of Shasta County is to develop, adapt, and extend research-based horticultural information and educational programs to the residents of Shasta and Tehama Counties.
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up close image of California poppies
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Environmental Literacy

As UCANR's Strategic Vision states, accurate science-based information is one of the cornerstones of making sound decisions, whether at the personal level, or in the creation and application of public policy.
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Nevada County 4-H Youth at the Fair
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Nevada County 4-H Program

4-H is an organization for youth ages 5-18 that promotes hands-on, experiential learning. 4-H welcomes youth members and adult volunteers from all backgrounds and all locations.
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up close image of California poppies
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California 4-H Association

The California 4-H Association is a nationally recognized network of youth development professionals committed to advancing the professional status of the 4-H staff and academics through professional improvement.
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Shasta County: Article

Volume 5, Issue 1 - February 2014 Northern California Ranch Update

December 19, 2025
In this Issue:   Managing Irrigated Pasture in a Short Water Year   Watch Your Cattle Around Oak Trees   New Perennial Grass Tested for Sacramento Valley Foothill Rangeland   SRA Fees Boost Funding for CAL FIRE's VMP Program   Managing Cattle During Drought:…
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snow covered garden trellis
UC Master Gardener Coordinators: Article

Rooted in Marketing - December 2025

December 19, 2025
As we close out another year, it's time to reflect on everything you've accomplished. Your dedication to telling our story matters. Every post, newsletter, and event you've shared has helped extend our reach and strengthen connections in your communities. Thank you. As we enter the busiest month for…
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an image with various photos of UC Environmental Stewards community members says 63 new instructors trained, 101 courses held training 1,760 people, 1 regional rendezvous with 121 attendees, a new logo and an updated handbook
California Naturalist: Article

Support UC Environmental Stewards

December 19, 2025
By Gregory C Ira
 Dear Community,Connecting with like-minded people is one of the top reasons individuals join a California Naturalist or Climate Stewards course. Your support of UC Environmental Stewards powers a small but mighty team anchoring one of the largest collective impact networks of its kind. Just five…
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Douglas Iris
UC Master Gardeners of San Mateo & San Francisco Counties: Event

California Native Irises Division Workshop

Event Date
Jan 11, 2026

California native irises are beautiful and easy to grow. Join us to learn about them and take some home for free! We’ll begin indoors at the San Carlos Library with an introduction to the world of irises and especially our beautiful California native irises. We will cover how they grow, why winter is the…
UC Master Gardeners of San Mateo & San Francisco Counties
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Pine bough
Fresno Gardening Green: Article

Pruning pine trees is best done in the coldest months of the year

December 19, 2025
If your pine tree has become unwieldy or some parts look diseased, winter is the best time to prune out unwanted twigs and branches. When the weather is warmer, the pruning cuts may attract pests that threaten the health of the tree, including pine bark beetles, pitch moths and western gall rust,…
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Striped pansies
Fresno Gardening Green: Article

This week in the garden: Dec. 19 - 25

December 19, 2025
Plan now for New Year’s resolutions for the garden. Check gardening books for ideas.TasksSpray apricots and walnuts with horticultural oil and fixed copper.Provide frost protection. Move or cover tender plants. Use floating row covers or fabric, and uncover plants during the day. Frost protection material…
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Waving goodbye in Burundi. (Photo by Jenny Carlson Donnelly)

Lost Science, A Lost Job, A Loss to Global Public Health

December 18, 2025
By Kathy Keatley Garvey
 The "Lost Science" column of the New York Times recently focused on Jenny Carlson Donnelly, a UC Davis doctoral alumna who lost her job earlier this year as a Malaria Outbreak Emergency Advisor for the U.S. Agency for International Development (USAID) due to Trump administration cuts.USAID,…
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UC Master Gardeners of Placer County: Article

Worms in My Apples: Non-chemical Control of Codling Moths

December 18, 2025
Jacqueline Champa, UC Master Gardeners of Placer County From The Curious Gardener, Fall 2010All summer you looked forward to your first, fresh-picked apple of the season. Picking a beautiful apple off the tree, the only imperfection is a slight red spot on the skin---somewhat like a blossoming…
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