Insects

OSU Extension Service provides up-to-date information on insect and arthropod management in Oregon and throughout the country. This includes pest management in urban and agricultural settings, as well as conservation of beneficial insects and pollinator health. We provide resources and expertise to help you find the information you need.

Bees and Pollinators
Pesticide Safety
Pest Management in Crops
Forest Pests
Insect Identification
Invasive Insects

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 agricultural and nonagricultural products such as commercial vegetables, small fruit, turf and...

Apr 2019 | OSU Extension Catalog

Douglas-fir Insect Pests

Douglas-firs usually do not tolerate extreme drought conditions well. In this article, you'll learn the most common insects in a drought-stressed or dead Douglas-fir, the damage they cause, and some suggestions for reducing that damage.

Ellen Michaels Goheen, Don Goheen | Jun 2018 | 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 flowers that attract beneficial insects. Discusses buying and releasing beneficial insects.

Jul 2001 | 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.

Silvia I. Rondon, Mary Corp | Dec 2018 | Collection

Pest Management in Crops

Hazelnut IPM

Resources about integrated pest management for hazelnuts.

Nik Wiman, Vaughn Walton, Jay Pscheidt, Marcelo Moretti, David Lowenstein, Heather Andrews, Rachele Nieri | May 2019 | 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 Skinkis, Peter Shearer, Jana Lee, Man-Yeon Choi | Dec 2018 | 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

Potato IPM

The Agricultural Research and Extension Centers in Eastern and Central Oregon have dedicated faculty focused on IPM (Integrated Pest Managment) for potato and seed potato production. Additional resources are available for Western Oregon gardeners through the Community Horticulture and Small Farms Programs.

Oct 2019 | Collection

Browse Resources

Latest News

Know garden pests before deciding on a path to control

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

Kym Pokorny | Aug 9, 2019 | News Story

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

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.

Chris Branam | Jun 10, 2019 | News Story

A look back on a year of gardening stories

A story about yellowjackets topped the most-popular list.

Kym Pokorny | Jan 12, 2019 | News Story

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Integrated Pest Management

Upcoming Events

Native Plants! Why, Which & How to Use Them

569 Hanley Rd
Central Point, OR 97502
United States

Dec 5, 2019 6:00 pm - 8:00 pm | Event

CORE Pesticide Applicator Videoconference Training

215 Ringuette St
Grants Pass, OR 97527
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Dec 12, 2019 9:45 am - 3:00 pm | Event

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29390 Ellensburg Ave, PO Box 488
Gold Beach, OR 97444
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Jan 24, 2020 9:00 am - 12:00 pm | Event

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Silvia I. Rondon

Entomologist

Jessica Green

Senior Research Assistant

Gail Langellotto

Master Gardener Statewide Coordinator

Will Jessie

South Valley Fields Crops Faculty

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My pond has become a fly nursery. How can I get rid of them?

Q: I have a 4 year old 12,000 gallon koi pond with a large waterfall. I went to clean the waterfall filters and add barley hay for the algae last weekend only to find thousands, maybe millions, of black fly larvae. I scraped the waterfall as best I could and turned the waterfall back on. The koi enjoyed a meal but when I turned off the waterfall the next day, ...

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