Brown marmorated stink bug (BMSB)

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

Invasive stink bug populations surge across Oregon fields and homes

It’s unclear why the population of brown marmorated stink bug exploded this year.

Kym Pokorny | Nov 9, 2022 | News story

Identifying brown marmorated stink bug

The brown marmorated stink bug (Halyomorpha halys) is a serious threat to Oregon agriculture. It feeds on more than 100 plants, including economically important crops. Learn to identify this invasive pest.

Chris Hedstrom, Nik Wiman, Vaughn Walton, Peter Shearer, Silvia I. Rondon, Jana Lee | Sep 2025 | OSU Extension Catalog Peer reviewed (Gray level)

Samurai wasp takes on brown marmorated stink bug

Invasive pest may have met its match

Kym Pokorny | Jun 2, 2017 | News story

For more information, please visit Stop BSMB

Dec 2018

Authors

Nik Wiman

Orchard Crops Specialist

Rick Hilton

(Retired)

Clive Kaiser

(Former)

Vaughn Walton

Entomologist

Rachel Suits

(Former)

David Lowenstein

(Former)

Victoria Skillman

Faculty Research Assistant

Heather Andrews

Orchard Crops Faculty Research Assistant

Want to learn more about this topic? Explore more resources from OSU Extension: Insects

Was this page helpful?

Related Content from OSU Extension

Sustainable Hazelnut Production: Filbertworm Control by Mating Disruption

Filbertworm is the insect pest of greatest economic importance in Oregon hazelnut production. This publication explains how to Implement mating disruption as a strategy that will reduce damage caused by filbertworm ...

Betsey Miller, Daniel Dalton, Linda Brewer, Vaughn Walton | Apr 2022 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated pest management for ants in schools

While ants are beneficial in the landscape, we don't like to see them indoors. To learn how to control ants in school buildings, start by identifying the species.

Tim Stock, Dawn Gouge | Mar 2026 | OSU Extension Catalog Peer reviewed (Orange level)

Homeowner Guide to Managing Bronze Birch Borer: An Insect Killing Birches in the PNW

Learn about the life stages of the bronze birch borer and the damage it causes. Homeowners will learn to assess the damage, treat trees and prevent infestation.

Nicole Sanchez, Dan Leavell | Jul 2023 | OSU Extension Catalog Peer reviewed (Orange level)

Biology and management of beet leafhopper and purple top in potatoes in the Pacific Northwest

Leafhoppers damage potatoes by feeding on the plants, or by transmitting viruses and phytoplasmas, which are small bacterial parasites of plant phloem tissue. Phytoplasmas cause purple top disease, which reduces yield ...

Silvia I. Rondon, Tiziana Oppedisano | Oct 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Cultural control strategies to manage spotted-wing drosophila

Cultural controls can reduce spotted-wing drosophila population pressure by modifying the microclimate within the crop so that the environment does not promote SWD reproduction and survival.

Dalila Rendon, Serhan Mermer, Linda Brewer, Daniel Dalton, Cherre Bezerra Da Silva, Jana Lee, Rachael Nieri, Kyoo Park, Ferdinand Pfab, Gabriella Tait, Marco Rossi-Stacconi, Nik Wiman, Vaughn Walton | Jun 2023 | OSU Extension Catalog Peer reviewed (Orange level)

Host range and characteristics affecting fruit susceptibility to spotted-wing drosophila

Spotted-wing drosophila thrives on various soft-skinned fruits, complicating pest management as they can move between hosts with different ripening times for a year-round survival and reproduction.

Vaughn Walton, Marco Rossi-Stacconi, Gabriella Tait, Dalila Rendon, Jana Lee, Rachael Nieri, Linda Brewer | Sep 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Improved chemical control strategies for spotted-wing drosophila

Learn how life stages, product choice, timing and coverage impact success in the control of spotted-wing drosophila.

Serhan Mermer, Linda Brewer, Daniel Dalton, Rachael Nieri, Kyoo Park, Ferdinand Pfab, Marco Rossi-Stacconi, Vaughn Walton | Sep 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Monitoring techniques for spotted-wing drosophila

Commercial fruit growers use trapping to monitored for adult spotted-wing drosophila in fields and field borders. They monitor other fruits for infestation using a fruit dunk flotation technique.

Gabriella Tait, Marco Rossi-Stacconi, Elizabeth Miller, Daniel Dalton, Jana Lee, Kyoo Park, Vaughn Walton, Tom Peerbolt, Linda Brewer | Nov 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Noncrop host plants used by spotted-wing drosophila

Dense vegetation around commercial fields creates a suitable habitat for spotted-wing drosophila, as the shade increases pressure and impacts sustainable integrated pest management strategies.

Gabriella Tait, Dalila Rendon, Linda Brewer, Daniel Dalton, Jana Lee, Rachael Nieri, Kyoo Park, Ferdinand Pfab, Marco Rossi-Stacconi, Vaughn Walton | Sep 2024 | OSU Extension Catalog Peer reviewed (Orange level)

OSU-USDA research leads to change in clover seed weevil management

Growers adopt new strategy to combat resistant pest.

Christy Tanner, Navneet Kaur | Feb 2026 | Impact story

Spotted Wing Drosophila: A Quick, 7-Step Guide to Detecting SWD Larvae in Fruit

This brief guide illustrates how to test fruit for the presence of larvae from the Spotted Wing Drosophila.

Amy J. Dreves, Adam Cave, Jana Lee | Mar 2023 | OSU Extension Catalog Peer reviewed (Orange level)

Chicken tractors: Moveable flocks help manage orchard pests

It can be difficult to manage insect pests and weeds in an orchard, where tilling is not an option. Could chickens be part of the solution? See what the research says!

Betsey Miller, Travis Witmer, Linda Brewer | Mar 2026 | OSU Extension Catalog Peer reviewed (Orange level)

Experts warn against releasing non-native fish for mosquito control

"Do-it-yourself” solutions aren’t effective for mosquito control, and they aren’t good for the environment.

Chris Branam | Jul 26, 2022 | News story

Managing Insects and Diseases of Oregon Conifers

Discusses options for managing major insect pests and diseases of conifers in Oregon forests: bark beetles, wood borers, and ambrosia beetles; defoliators; aphids, adelgids, and scale insects; terminal and branch ...

Paul T. Oester, David C. Shaw, Gregory M. Filip | Jun 2023 | OSU Extension Catalog Peer reviewed (Orange level)

Flies in School Kitchens

Learn practical tips on the prevention and management of house flies, drain flies and fruit flies that appear in kitchens. This fact sheet publication would be useful for school kitchen staff and other staff who service kitchens.

Tim Stock, Dawn H. Gouge | Dec 2022 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management of Nonbiting Flies in Schools

This publication identifies beneficial and problematic flies found in school kitchens in the Pacific North West. It includes suggestions on how to prevent and control a fly infestation.

Dawn Heather Gouge, Tim Stock | Dec 2022 | OSU Extension Catalog Peer reviewed (Orange level)

Can you identify this insect?

Once I capture a creature in a jar, or I find our field full of tiny bugs, now what? How can Extension help me know what it is and if I should be concerned?

Jessica Green | Dec 2023 | Featured question

Management of grasshoppers and Mormon crickets on rangeland and pastures

Learn how Eastern Oregon ranchers can protect forage from pest outbreaks. Discover when populations exceed thresholds, how treatments are coordinated across large areas and which chemical tools provide cost-effective relief while minimizing environmental impact.

Will Price, Scott Duggan, Sergio Arispe | Jun 2025 | OSU Extension Catalog Peer reviewed (Gray level)

Have a question? Ask Extension!

Ask Extension 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