Insects

Thank you for your interest in Extension Entomology at OSU !

Our resources are designed to be mobile-friendly and easy to access. Content is sorted by keyword or content type. Browse our resources to explore.

For more information, or to contact us, please visit the Entomology Program website.

Featured Resources

2019 PNW Insect Management Handbook

A comprehensive guide to insect management in commercial crops and environments and in home landscapes and gardens in the Pacific Northwest. Covers pesticide safety and toxicity, protecting bees, adjuvants, mixing tables, calibration, and biological control. Other sections cover a wide variety of...

OSU Extension Catalog

Douglas Fir Insect Pests

The most common insects in the drought stressed or dead Douglas-fir.

By Ellen Michaels Goheen, Don Goheen | Article

Encouraging Beneficial Insects in Your Garden

Describes the three types of beneficial insects (predators, pollinators, and parasitoids) and the pests they control. Illustrates common beneficial insects of the Pacific Northwest. Explains how to protect beneficial insects from insecticides and create habitat for them. Includes a list of garden...

OSU Extension Catalog

Collecting and Preserving Insects

Collecting insects can be a fun hobby, and is also an important step in IPM. The resources in this collection will help you learn how to find and collect insects and arthropods, then prepare them so that they can be useful for identification and research efforts.

By Silvia Rondon, Mary Corp, | Collection

Latest News

Know garden pests before deciding on a path to control

Aug 9, 2019

Beneficial insects will often show up to feed on pest insects so don't kill indiscriminately.

By Kym Pokorny | News Story

Researchers determine ideal areas and timing for biological control of invasive stink bug

Jun 10, 2019

Biological control of the brown marmorated stink bug, an invasive pest that devastates gardens and crops, would be more effective in natural areas bordering crops or at times when certain insecticides aren’t being applied.

By Chris Branam | News Story

A look back on a year of gardening stories

Jan 12, 2019

A story about yellowjackets topped the most-popular list.

By Kym Pokorny | News Story

Read All News

Explore more resources

Integrated Pest Management

Upcoming Events

Ace Hardware Plant Clinic-Hood River

Hood River, OR

Sat, Sep 21, 2019 9:00 am - 1:00 pm

Have a gardening problem that you would like advice on how to solve? A bug that you would like to know what it is and if it's a pest or a beneficial? Stop by Ace Hardware in Hood River on the second -...

Ace Hardware Plant Clinic-White Salmon

White Salmon, WA

Sat, Oct 5, 2019 9:00 am - 1:00 pm

Have a gardening problem that you would like advice on how to solve? A bug that you would like to know what it is and if it's a pest or a beneficial? Stop by the OSU Extension Service Plant Clinic...

Gardening in the PNW - Basic Entomology

Albany, OR

Wed, Oct 9, 2019 12:00 pm - 1:00 pm

Welcome to a series of short lunchtime sessions on popular gardening topics for Linn County gardeners. It is informal, informative, and fun-no reservation needed and there is no charge! Hosted by the...

Meet Our Experts

Silvia I. Rondon

Entomologist

Jessica Green

Senior Research Assistant

Gail Langellotto

Master Gardener Statewide Coordinator

Will Jessie

South Valley Fields Crops Faculty

Have a Question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask Us a Question

Does this web pest need reported?

I found a tent web in my tree in West Linn Clackamas this weekend. Someone suggested I report it as apparently it can spread. I contacted Clackamas county and they suggested I contact you. Is this something I should be concerned about?

By Jack Shorr | Featured Question

See More Questions