Invasive Species

Valley oak tree atop a hill of brown grass.
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…
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Detector dog stands on a small box, gazing at handler to alert a find
Article

Dogs Sniff Out Pest Problems

March 27th, 2025
By Lindsey Hack
Dogs use their keen sense of smell to help humans every day. Their powerful noses alert us to danger, aid in search and rescue operations, and even have the potential to diagnose diseases. But did you know that some dogs have been trained to sniff out harmful invasive pests? Enter the detector dogs! …
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Valley oak tree atop a hill of brown grass.
Article

Webinar: Mediterranean Oak Borer and Other Oak Pests

March 26th, 2025
By Lauren Fordyce
Join UC IPM for a free webinar on the invasive Mediterranean Oak Borer (MOB) and other important oak tree pests on April 10, 2025 from 6:00pm to 7:30pm. The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak,…
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Banner weeds
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Weeds & Invasive Plants

Lambert Yuri, Unsplash > Types of weeds > Life cycle of weeds > How to identify weeds > Managing weeds > What to do when you already have weeds > What you should know about weedkillers > How to prevent weeds Weeds are generally defined as any plant growing in a place where you dont want it, or a pla...
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What is an invasive species?
Article

National Invasive Species Action Week 2025

February 24th, 2025
From February 24 - 28, 2025, help increase public awareness of invasive species and join the fight against invasive species by participating in National Invasive Species Action Week (NISAW).
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Person dumping a white bucket of water outside.
Article

Drain After Rain to Prevent Mosquitoes

February 20th, 2025
By Lauren Fordyce
Recent rainfall throughout much of California has created puddles and stagnant water. With the temperature warming up in many parts of the state, this combination can create the perfect situation for mosquitoes to breed. We encourage you to drain after the rain to reduce mosquito-breeding sites.
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Figure 1. Metal art structure in transit to California. Photo credit: Sonoma County Dept of Agriculture/W&M
Article

Spotted Lanternfly: The Need to Remain Vigilant (Part 1)

November 19th, 2024
By Cindy Kron
On March 27th, 2024, a flatbed truck carrying a metal art structure originating in New York and headed to Petaluma, California was stopped at the California Department of Food and Agriculture (CDFA) Agricultural Inspection Station in Truckee, California due to live spotted lanternfly (SLF) egg masse...
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