Weed Control

Heavy infestation of weeds in between two rows of grapevines.
UC Ag Experts Talk Webinar Series: Event

Webinar: Perennial Weed Management in Vineyards and Orchards

Jun 3, 2026

This webinar is part of the UC Ag Experts Talk series. Jorge Angeles, Weed Management Advisor, University of California Cooperative Extension, Tulare, Kings, and Fresno Counties, will provide an overview of commonly found perennial weeds in orchards and vineyards in the San Joaquin Valley and cover key…
UC Ag Experts Talk Webinar Series
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UC Master Gardeners of El Dorado County: Event

Central Sierra: Control of Invasive and Noxious Weeds in El Dorado County

Jun 13, 2026

These weeds displace natives, decrease wildlife habitat, and reduce recreational and land values.  Discover ways to identify, control, and report invasive weeds of county-wide concern.  Then, we will take a look at weeds commonly found in the home landscape, their culture, and control strategies.
UC Master Gardeners of El Dorado County
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UC Master Gardeners of El Dorado County: Event

Central Sierra: Starthistle (EDC MG)

Nov 8, 2025

Come learn about this invasive weed that has taken over large portions of California’s range land and urban landscape. Learn about its origins, how it moves, why it is so difficult to control, how to overcome these difficulties, control methods, and how to design an effective control program.
UC Master Gardeners of El Dorado County
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Green alfalfa field with scattered blooms of purple flowers blowing in the wind.
UC Ag Experts Talk Webinar Series: Event

Webinar: Pest Management in Alfalfa, Small Grains, and Garbanzo Beans

Sep 24, 2025

This webinar is part of the UC Ag Experts Talk series. Dr. Michelle Leinfelder-Miles, Delta Crops Resource Management Advisor with the University of California Cooperative Extension, San Joaquin County, will discuss the principles of Integrated Pest Management and pest management in alfalfa, small grains,…
UC Ag Experts Talk Webinar Series
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Oval-shaped insect with triangular marking on its back with membranous wings
UC Ag Experts Talk Webinar Series: Event

Webinar: Field Crop Insect and Weed Management Updates

Aug 6, 2025

This webinar is part of the UC Ag Experts Talk series. Nicholas Clark, Associate Cooperative Extension Area Agronomic Cropping Systems and Nutrient Management Advisor, will give an introduction of agronomic cropping systems and their current weed and insect pest management challenges. He will describe…
UC Ag Experts Talk Webinar Series
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Yellow flowering shrub in a field.
Urban & Community IPM Webinars: Event

Webinar: Managing Invasive Plants

Aug 21, 2025

In California, invasive plants cause problems such as increasing wildfire risk, damaging ecosystems, and affecting recreation activities. Join us to learn about the impacts of invasive plants and ways you can help prevent the spread of invasive plants.About the Urban and Community IPM Webinar …
Urban & Community IPM Webinars
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UC Master Gardeners of Butte County: Event

Weed ID

May 6, 2026

This workshop explores the nature of weeds, and why it’s important to correctly identify which weeds you are battling. We’ll offer tools to help with this, including a hands-on practicum. Primary strategies for weed control are Integrated Pest Management methods; we’ll have a quick primer on chemical…
UC Master Gardeners of Butte County
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UC Master Gardeners of El Dorado County: Event

Central Sierra: Controlling Weeds (EDC MG)

May 24, 2025

Join the El Dorado County Master Gardeners to learn about weeds commonly found in the home landscape, their culture, and control strategies. Well also discuss highly aggressive non-native weeds which have been introduced into El Dorado County.
UC Master Gardeners of El Dorado County
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Oxalis stricta (common yellow wood sorrel) is nearly impossible to eradicate in our area. J.C. Lawrence
The Real Dirt: Article

What Weeds Can Tell Us

April 27, 2026
Every gardener knows that weeds are just plants in the wrong place. Webster’s dictionary defines a weed as “a plant that is not valued where it is growing and is usually of vigorous growth; especially: one that tends to overgrow or choke out more desirable plants.” The use of weeds as soil indicators is not…
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