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UC Weed Science (weed control, management, ecology, and minutia)

The UC Weed Science group is an interdisciplinary collaboration that fosters research in weed management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources. We are University of California Cooperative Extension Specialists,…
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Farmers Market
UC Master Food Preserver Program of Orange County: Event

Corona del Mar Farmers Market

May 30, 2026

Preserving the Market The Orange County Master Food  Preservers are now at select Farmers Markets!The Orange County Master Food Preservers are at the Farmers Market to help you preserve your purchases, answer preservation questions(canning, fermentation, dehydration, storage), and guide you to resources…
UC Master Food Preserver Program of Orange County
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UC Rice Blog: Article

Ongoing diesel exhaust fluid (DEF) action

May 25, 2026
By Sarah Marsh Janish
Background Since 2010, most on-road and many off-road vehicles and equipment have used selective catalytic reduction (SCR) systems to inject diesel exhaust fluid (DEF) into exhaust streams with the intended goal of nitrous oxide (NOx) emission reduction. In cases where DEF levels ran low or unexpected…
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UC Master Gardeners of San Diego County: Article

The Dilemma of Peat

May 24, 2026
By Michael Harrelson
(Originally published May 2, 2026)  The efficacy of using peat as a soil amendment for home gardeners may very well depend on where you live.  There is no argument that peat increases soil viability and improves crop yields. Soil scientists estimate that one acre of harvested peat can account for…
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UC Master Gardeners of San Diego County: Article

Growing a Buzzworthy Backyard

May 24, 2026
By Kira Olsson
 (This article originally appeared in the April 11, 2026 edition of the San Diego Union-Tribune)Did you know that San Diego County is officially the “bee capital” of the U.S.? In May 2025, the Xerces Society for Invertebrate Conservation designated San Diego as a Bee City USA, recognizing our city’s…
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Picture of a suburban front porch with green landscaping and outdoor furniture arranged on the porch.
UC Master Gardeners of Tuolumne County: Article

Zucchini Porches in Tuolumne County

May 24, 2026
           What makes a neighborhood a community? Is it holiday decorations, strollable sidewalks, or HOA-stipulated paint colors? Laughing children, knowing your neighbors and aesthetic beauty are all components of your surrounding neighborhood. But I think front porches create…
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UC Master Gardeners of Tulare and Kings County: Article

Landscaping to Prevent Wildfire Damage

May 23, 2026
By Michelle Le Strange
Many residents in Tulare and Kings Counties live in the countryside on the valley floor or in the foothills. These areas are more susceptible to wildfire damage than city residential zones. Because of drought and climate change, fire season is expected to start earlier and last longer throughout all of…
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Small tan and black winged insect and curls of waxy frass
UC Master Gardeners of Santa Clara County: Event

Update on Asian Citrus Psyllid in California - Online

Jul 16, 2026

Join citrus IPM adviser Dr. Sandipa Gautam, for an update on Asian citrus psyllid (ACP). Learn about practical ways to limit psyllid infestations in home gardens and landscapes. The webinar will also cover identification, management strategies, and steps you can take to minimize the spread of this pest in…
UC Master Gardeners of Santa Clara County
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