Invasive Species Management

Scenic shot showing cloudy sky with rain in the distance. Green weeds and dry grass in the foreground with mountains in the distance.
UC Ag Experts Talk Webinar Series: Event

Webinar: Invasive Weeds Management in Intermountain NorCal

Aug 5, 2026

This webinar is part of an invasive weed species miniseries. Thomas Getts, UC Cooperative Extension Weed Ecology and Cropping Systems Advisor (Lassen, Modoc, Sierra, and Plumas Counties), will describe the biology, impacts, and control of some of the more common and damaging invasive weed species in the…
UC Ag Experts Talk Webinar Series
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Horizontal of California state capitol Sacramento
Urban & Community IPM Webinars: Event

How Invasive Pests Are Managed in California

Dec 3, 2025

Join us for a peek behind the scenes to learn what state agencies are doing to protect California from invasive pests.
Urban & Community IPM Webinars
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dry grass on a sloping hillside caught in a blaze of fire
Urban & Community IPM Webinars: Event

Weeds, Wildlands, & Wildfires

Nov 5, 2025

Join invasive plant expert Chris McDonald to learn about the impacts of invasive weeds and how they are managed in California.
Urban & Community IPM Webinars
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Large white pipe covered with mud and mussels clustered from another center pipe.
Urban & Community IPM Webinars: Event

Protect California’s Waters from Invasive Species

Sep 3, 2025

Learn about aquatic invasive species like golden mussels, nutria, and simple actions you can take to help protect our waters from these destructive pests.
Urban & Community IPM Webinars
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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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Valley oak tree atop a hill of brown grass.
Urban & Community IPM Webinars: Event

Webinar: Mediterranean Oak Borer & Other Pests of California Oaks

Apr 10, 2025

The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak, and Oregon oak. The beetle is spreading rapidly in Napa, Lake, Sonoma, and Sacramento Counties and has been detected in neighboring El Dorado, Yolo, and Mendocino…
Urban & Community IPM Webinars
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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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Campfire burning

Camping, Firewood, and Hitchikers

June 4, 2026
By Cherie Shook
Visiting Yosemite National Park is an awe-inspiring experience, even for the most seasoned of travelers. The valleys, waterfalls, giant sequoias, and iconic Glacier Point are all bucket list destinations ideal for a family camping vacation. To continue enjoying beautiful parks like Yosemite, it is important…
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Adult japanese beetles, one with two macrotype parasite eggs of Hyperecteina aldrichi (Tachinidae) on its thorax

Protect California from Invasive Species

June 2, 2026
By Yulie Velez
Help raise awareness of invasive species by participating in the California Invasive Species Action Week (CISAW) held June 6-14, 2026! Invasive species are non-native pests that can negatively impact our waters, native ecosystems, agriculture, health, and economy. Each day during the week, UC IPM will…
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Glassy-winged sharpshooter adult and (out-of-focus) nymph on green lemon twig.

Purchased a Grapevine at Costco in N. CA Recently? Read This!

May 28, 2026
By Karey Windbiel-Rojas
Updated May 29, 2026 at 4:30pmAn invasive insect called the glassy-winged sharpshooter (GWSS) has been found on grapevine shipments sold at select Costco locations in Northern California between April 21 and May 21, 2026. Note that the timeframe for grapevine plants sold at Costco has been extended to April…
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