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Invasive species

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Displaying 21 - 30 of 122 resources

PNW Insect Management Handbook - Mealybugs of Grapes

The PNW Insect Management Handbook provides Oregon-specific information on mealybugs and their management including labeled insecticides.

Patricia A. Skinkis, Vaughn Walton, Brooke Edmunds | Dec 2022 | Online resource

New Extension website helps solve pest and disease problems

Solve Pest and Weed Problems focuses specifically on the Pacific Northwest and prioritizes low-risk approaches.

Kym Pokorny | Nov 11, 2022 | News story

Large increase of stink bugs poses serious threat to Oregon crops

It’s unclear why the population of brown marmorated stink bug exploded this year. Like other insects, the population of the shield-shaped brown marmorated stink bug (BMSB) varies from year to year depending on climatic factors.

Kym Pokorny | Nov 9, 2022 | News story

Strategies for rodent control?

Q: My backyard got invaded by gophers (or someone who enjoys making holes). I'm worrying that I might injure myself in the holes. I have tried setting traps, but have been unsuccessful. I heard some snakes can kill gophers, but I'm also aware not to release invasive creatures. What do you recommend?

A: View answer | View all featured questions

Emerald Ash Borer - A New Invasive Pest

A 10-Minute University guest presentation by Dr. Gail Langellotto, Professor of Horticulture at Oregon State University about Emerald Ash Borer.

Gail Langellotto | Oct 2022 | Video Peer reviewed (Gray level)

Solve Pest Problems

Learn research-based, safe, and effective tactics for common garden and property pests and weeds. We provide non-chemical methods alongside the most effective and least toxic chemical options available, to reduce risk to people and the environment. Solve Pest Problems is a partnership between OSU and Oregon stakeholders to provide a user-friendly online resource to help urban and rural property managers to solve pest problems.

Weston Miller | Oct 2022 | Online resource Peer reviewed (Gray level)

Stink bugs and boxelder bugs everywhere?

Q: The exterior of my house is covered in stink bugs and boxelder bugs. Occasionally, some also get inside my home. How do I get rid of them without using pesticides?

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Northern giant hornets in Oregon?

Q: Have residents of Arlington reported Asian giant hornet sightings? Several of my co-workers at the solar-farm have seen a large dark orange hornet starting in July, much like the pictures on the Internet. Can one of your entomologists come and verify if we are seeing the Asian giant hornet?

A: View answer | View all featured questions

How to manage Tansy Ragwort?

Q: We have wheat planted and along our fence line we have an infestation of tansy ragwort. Is it a good time to cut the flowers off, bag them, and leave the plant; or should I spray it? The neighbor across the road has...

A: View answer | View all featured questions

Emerald ash borer resources

Learn how to identify the emerald ash borer (EAB) beetle and ash trees, what you can do and ways Oregonians are planning for and preventing the spread of this destructive insect.

Aug 2022 | Collection