Ongoing research

HLB Symptoms
Topics in Subtropics: Article

HLB Quarantine Area Expands

April 17, 2025
By Ben A Faber
The California Department of Food and Agriculture (CDFA) declared a citrus quarantine expansion in San Diego County’s Valley Center on March 26. The expansion occurred after detection of HLB disease in two citrus trees in residential neighborhoods in the Valley Center area during regular inspections.  …
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Measuring Water
Topics in Subtropics: Article

Avocado Irrigation Workshop

April 17, 2025
By Ben A Faber
On June 17, the University of California Cooperative Extension Agriculture and Natural Resources department is hosting a comprehensive Avocado Irrigation Workshop from 1:00 – 4:00 p.m. The seminar will take place at the San Diego Farm Bureau located at 420 South Broadway, Escondido, CA.The three-hour…
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UC Master Gardeners of Sacramento County: Event

Ask the Master Gardeners - Walk on the Wildside

May 17, 2025

  UC Master Gardeners of Sacramento County will be on hand to give one-on-one advice based on the most recent research-based sustainable practices along with decades of gardening experience.  Bring bagged samples of plants, snap a pic of a mystery pest with your phone or bring a bug in a jar…
UC Master Gardeners of Sacramento County
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Western Sierra Forestry & Natural Resources: Page

Local Fire Resources

Prepare for evacuationConfirm you will receive evacuation notice:Sign-up for cell alerts thru both CodeRED and Nixle.Have a land line phone that does not need power: Many land line telephones, especially portable phones, require power to function and often fail in emergencies. Instead,…
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Western Sierra Forestry & Natural Resources: Page

Fire Education

Living with Fire is a challenge in the Sierra Nevada. We live in a fire-adapted ecosystem where wildfires used to burn naturally every 8 to 35 years depending on elevation. Since we started suppressing wildfire over a hundred years ago, Sierra Nevada forests and woodlands have gotten overly dense with…
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Western Sierra Forestry & Natural Resources: Page

Forestry Research and Extension

UC Cooperative Extension works with a wide range of collaborators to advance the field of Forestry and Natural Resources.  Core to these efforts are preparing future professionals for the management challenges they will face in the years to come.Forest GIS TrainingsUCCE periodically hosts Forestry…
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UC Ag Experts Talk Webinar Series: Page

Past webinars - Strawberry pests

As webinars are completed, we post recordings on YouTube for future study and sharing with others. Continuing education units are not available for recorded webinars. Only participants of live webinars receive credits.Management of Lygus Bugs in Strawberry by Mark Bolda (June 5, 2024)Mark…
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UC Ag Experts Talk Webinar Series: Page

Past webinars - Weed management

As webinars are completed, we post recordings on YouTube for future study and sharing with others. Continuing education units are not available for recorded webinars. Only participants of live webinars receive credits.Perennial Weed Management in Vineyards and Orchards by Jorge Angeles (June 3…
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Flameskimmer dragonfly above bed of California golden poppies. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Flameskimmers Bring Great Joy

April 16, 2025
By Kathy Keatley Garvey
Bug Squad Blog By Kathy Keatley GarveyFlameskimmers bring great joy.Today we saw our first dragonfly of the season in our Vacaville garden.  The flameskimmer, a female Libellula saturata, perched on a stick and allowed me to take a few images. It was just a couple of weeks ago that I reviewed a…
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Meadow flowers
Fresno Gardening Green: Article

Madera high school students enjoy a new native plant habitat on campus

April 16, 2025
By Jeannette Warnert
 Before Katie Howden graduated from Madera South High School in 2008, she noticed an unsightly piece of vacant land between two portable classrooms on campus. The one-third acre gravel pit with a smattering of utility infrastructure was choked with puncturevine and tumbleweed or, during the rainy season…
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