Invasive species

Announcements

Emerald ash borer permanent quarantine for Washington, Yamhill, Marion and Clackamas counties

The invasive pest emerald ash borer has been found in Oregon and a permanent quarantine prohibiting the movement of tree materials was issued for four counties. Read more...

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Latest Resources

Hopkins Demonstration Forest

Hopkins Demonstration Forest is a 140-acre privately-owned forest open to the public for self-guided exploration, tours, workshops, and education programs. They welcome guests during daylight hours, seven days a week throughout the year. Property maps are available at the information kiosk near the main parking area.

Aug 2024 | Online resource

Eastern Oregon Agricultural Research Center (EOARC) YouTube channel

Eastern Oregon Agricultural Research Center (EOARC) YouTube channel has videos on their research and educational programs. EOARC is a cooperative research effort between Oregon State University and USDA-Agricultural Research Service focusing on rangeland ecology and restoration of wildlands, environmentally compatible livestock systems, forage crops, and alternative livestock systems in the sagebrush-steppe of the Great Basin and inland coniferous forests of the Pacific Northwest. The Center's research program is unique in the integration of research about beef cattle, rangeland, wildlife, watershed, and forest management.

Dec 2023 | Online resource

Episode 42: Mediterranean Oak Borer

In this episode, Lauren Grand is joined by Christine Buhl to discuss what the Mediterranean Oak Borer is, where it came from, and ways to identify infestations and prevent them from spreading.

Lauren Grand, Christine Buhl | Nov 2023 | Podcast episode

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Controlling Invasive Plants

Some common garden plants have become invasive pests in wild habitats. In Oregon, these invasives include some favorites such as English ivy and butterfly bush.

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Photo Credit: yvonne navalaney - Adobe Stock (Cropped from original)

Invasive Insects

Spotted lanternfly resources

The spotted lanternfly is an invasive pest in the United States that was first detected in 2014 in Pennsylvania. It is a pest of numerous cultivated and wild hosts. It can cause serious damage to apples, grapes, stone fruit, landscape trees, and others and can be a nuisance pest in urban areas.This page offers an introduction to the pest, photos of each part of the insect's life cycle, and detailed videos for more information.

Dr. Surendra Dara | Apr 2021 | Online resource Peer reviewed (Gray level)

Emerald ash borer resources

Learn how to identify ash trees and the emerald ash borer beetle. Find out how Oregonians are working to prevent the spread of this destructive insect.

Aug 2022 | Collection

Brown Marmorated Stink Bug (BMSB)

Information and resources about the brown marmorated stink bug (BMSB), an invasive

Nik Wiman, Rick Hilton, Clive Kaiser, Vaughn Walton, Rachel Suits, David Lowenstein, Victoria Skillman, Heather Andrews | Dec 2018 | Collection

Spotted Wing Drosophila (SWD)

Information and resources about monitoring, identification, and management of spotted wing drosophila (SWD), an invasive fruit fly.

Vaughn Walton, Linda Brewer, Bernadine Strik, Patricia A. Skinkis, Peter Shearer, Jana Lee, Man-Yeon Choi | Apr 2024 | Collection

Northern giant hornet resources

Information from the Washington State Department of Agriculture about the Northern giant hornet (formerly Asian giant hornet).

Oregon Master Beekeeper Program

Bronze Birch Borer

Information on the bronze birch borer from the Pacific Northwest Pest Management Handbook.

Jul 2018 | Online resource

Become an Oregon Forest Pest Detector!

Oregon Forest Pest Detectors (OFPDs) are trained to recognize the signs and symptoms of invasive forest insects. They apply these skills in their day-to-day activities as arborists, parks managers, foresters, community tree stewards, Master Gardeners and other roles.

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Aquatic Invasive Species

Zebra & Quagga Mussels Species Guide

This guide provides in depth information on invasive zebra and quagga muscles. It is a companion resource to the Menace to the West an invasive species curriculum. Appropriate for grades 8-12.

Samuel Chan, Tania Siemens, Rick Cooper | Mar 2021 | Online resource

Pest alert: Invasive zebra mussels arrive in Oregon in "moss" balls sold for aquariums

Pest alert! The highly invasive Zebra mussel has made it into Oregon through moss balls, popular among aquarium hobbyists and commonly sold in pet stores. Invasive species experts say the moss balls should be destroyed.

Adriene Koett-Cronn, Samuel Chan | Mar 2021 | Article

Latest News

Extension partnership focuses on reduction of invasive annual grasses in Wallowa County

A suite of tools will be used to strategically address the problem of annual invasive grasses in Wallowa County through conservation, restoration and management.

Peter Schreder | Apr 2024 | Impact story

Dormant-season grazing research project reduces fine fuels in Malheur County

Since 2018, a total of 6,500 tons of fine fuels have been removed during off-season grazing, removing biomass that would otherwise burn in a rangeland wildfire in the 23,000 acres of public lands in Malheur County.

Sergio Arispe | Apr 2024 | Impact story

Extension equips Baker County land managers to face the challenge of invasive and noxious weeds

A post-workshop evaluation found that 100% of respondents indicated that they planned to incorporate at least one item from the workshop into their management actions.

Will Price | Mar 2024 | Impact story

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Wildlife

Insects

Integrated pest management

Nuisance wildlife

Pesticide safety and education

Weeds

Upcoming Events

Oct 2

Emerald Ash Borer Workshop for Small Farm and Woodland Owners

10:00 am - 12:00 pm Philomath, OR

Meet Our Experts

Samuel Chan

Watersheds & Aquatic Invasive Species

David C. Shaw

Extension Forest Health Specialist, Professor in Forest Engineering, Resources, and Management, Director, Swiss Needle Cast Cooperative

Lorelle Sherman

Forestry and Natural Resources Extension Forester

Dan Stark

Forestry and Natural Resources, Assistant Professor of Practice

Have a question? Ask Extension!

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Should we treat ash trees for emerald ash borer?

Q: I just read about the emerald ash borer (EAB) appearing in Oregon. We have two large very nice ash trees that we don't want to cut down, no signs of infestation at this time. Would you recommend we go ahead and treat these with the pesticide injection that treats for the borer, just in case?

A: View answer | View all featured questions

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