Oregon

Here are summaries of some of the IPM research, innovations and projects going on in Oregon, or benefitting Oregon agriculture, communities and natural areas. Projects listed here are not necessarily funded by the Western IPM Center.

A flock of sheep, some looking directly at the camera, on hills covered in dry grass.

Research Examines Barriers to Grazing for National Forest Management

Targeted grazing – using livestock to intentionally manage vegetation – can excel at treating large patches of edible invasive plants and can also create fuel breaks to reduce wildfire risk. So why don’t U.S. Forest Service staff use it more often to manage national forests? That’s the question Briana Swette, a postdoctoral fellow working with Dr. Kelly Hopping at Boise State University, wanted to answer.

Rachel Kesel and Tom Getts stand by a table full of weed management tools. Rachel holds an axe.

Plant Risk Evaluator Tool Helps Identify Potentially Problematic Plants

The easiest pest to manage is the one that’s not there. That’s why prevention and avoidance are first two principles of integrated pest management’s “PAMS Approach,” with monitoring and suppression following behind. It’s also the rationale behind the Plant Risk Evaluator Tool, an online database to evaluate the potential for ornamental and horticultural plants to become invasive weeds in different areas and environments.

A tractor mounted with with UV-C lights next to a vineyards.

Using UV Light to Kill Powdery Mildew on Grapes

Instead of relying solely on fungicides to control powdery mildew on winegrapes, growers may one day – and one day reasonably soon – have an effective non-chemical option: light. Specifically, light in the form of spore-killing ultraviolet UV-C radiation, delivered directly to the plant by a self-driving tractor moving through vineyard rows autonomously at night.

A group of growers gathered by a pop-up tent in front of an orchard.

Promoting IPM in Wenatchee Valley Pear Production

In some pear-growing regions in the Pacific Northwest, IPM is a widely accepted, effective and economical way to manage pear psylla and codling moth, the crop’s key insect pests. In the Wenatchee Valley, however, IPM adoption has been low and the barriers to adoption high. But researchers are working to change that.

Burned areas with ash in them in a grassy area in hills with pines and other vegetation.

Exploring a Fiery Method for Replacing Invasive Grasses

In California and throughout the West, land managers face huge challenges on huge acreage. Threats include invasive annual grasses, drier summers and changing fire regimes. To combat this combined threat, UC Davis researchers are testing a burn-and-replant method as a combined solution.

Cranberry grower Mike Haines sits in a cranberry bog in front of a camera on a short tripod. Two other men operate the camera.

Growers Helping Growers Avoid a Devastating Cranberry Disease

It sounds like an ad for a 1950s drive-in horror movie: Zombie plants emerge from New Jersey bogs! Can experts stop their catastrophic cross-county crawl before it’s too late?  But this is not “The Day of the Triffids” meets “Creature from the Black Lagoon.” Instead, it’s the latest Western Integrated Pest Management Center-funded research, a bi-coastal project looking to keep West Coast cranberry farms safe from false blossom disease, an insect-spread pathogen that’s plaguing East Coast cranberry producers.

Annie Krueger of Compliance Services International stands next to a whiteboard titled "Outcomes." There are both whiteboard marker notes and sticky notes on the whiteboard.

Work Group Aims to Make New Endangered Species Rules Workable

“If it’s so complex that it’s impossible, then no one wins.”

That was the key takeaway from a recent two-day workshop in Vancouver, Washington about implementing new U.S. Environmental Protection Agency pesticide-use rules to protect endangered and threatened species.

A clover field just past bloom with trees in the background.

Oregon Research Improves Residual Toxicity Warnings to Benefit Bees and Growers

It’s the kind of situation that can spiral downhill quickly. Beekeepers providing hives for pollination feel their bees are suffering excessive losses and fear improper insecticide use is to blame. Growers insist they are following label requirements and using necessary insecticides correctly to protect the bees. Both sides believe they are doing everything right, yet the outcomes are all wrong.

Tiny solar panels on a stake next to a vineyard row.

Testing “Electric Mulch” for Weed Control

“Electric mulch” uses small solar panels to charge stainless steel screens with a low-power electric current to prevent weed growth in vineyards, orchards or other high-value crops like blueberries. In early tests in New Mexico, it’s working.

Kyoo Park checks a sticky trap on a hedgerow.

Hoping a Tiny Wasp Has a Huge Impact in Controlling Spotted Wing Drosophilia

As South Korean imports go, Ganaspis brasiliensis will never have the popular cachet of pop sensations BTS or TV dramas like Squid Game, but for small fruit growers the tiny wasp might become the biggest superstar of all. That’s because Ganaspis brasiliensis is a parasitic wasp that lays eggs into the larvae of the spotted-wing drosophila fruit fly, an invasive insect that’s been plaguing growers of small fruit and berries since it was accidentally introduced into the mainland United States in 2008.

A large bush of purple flowers in a hedgerow.

A Humble Hedgerow Serves Pollinators and Beneficial Insects

In an expansive field of organically grown blueberries at Humbug Farms in Independence, Oregon, the most interesting rows aren’t blueberries at all. Instead, they are carefully chosen rows of (mostly) native flowering shrubs that provide food for wild bees and habitat for beneficial insects. Hurray for the humble hedgerow.

A line of kochia growing across a field.

Looking for Answers as Kochia Rolls Across the West

Kochia is a tumbling weed plaguing growers and ranchers from Central Canada to West Texas. “It’s salt tolerant, heat tolerant, cold tolerant,” said Kent Davis, a crop consultant with Crop Quest in Colorado. “I want to kill the damn stuff, there’s no question about it, but you have to admire it at the same time.”

A jar containing emerald ash borers and their frass on leaves.

Dropping the Emerald Ash Borer Quarantine Could Impact the West

The U.S. Animal and Plant Health Inspection Service has proposed lifting the domestic quarantine designed to slow the spread of emerald ash borer, an action that could speed the destructive insect’s introduction into Western states that have so far kept it at bay.

Wooly apple aphids on an apple branch.

Pest or Beneficial: Earwigs in Apples

For growers, a fundamental element of integrated pest management is knowing what pest and beneficial species are in your fields. But what if there’s an insect and no one knows if it’s good or bad? That was the question for apple growers about earwigs.

A pink peony.

What’s Plaguing that Peony?

Proper identification of a disease is the critical first step for growers to apply the correct treatment. In peonies, proper disease identification was a problem. If a plant was diseased, growers assumed that their plants were sick with Botrytis gray mold. The reality was more complex.

Lauren Smith standing in front of cows in a grassland.

Grassland Restoration Effects on Native Bees and Spiders

Throughout the West, many native grasslands have been degraded – overgrazed, overtilled, burned or overrun by invasive weeds like Medusahead or cheatgrass. While many restoration efforts only look at plant communities or endangered species, this research looked at native spider and bee communities.

A sign that says "Sip Certified: Sustainability in Practice."

Eco-Label Programs Promote IPM, but Aren’t Perfect

Eco-label programs  have clear benefits and promote more sustainable pest-management and growing practices. They also provide certain benefits for growers but have downsides as well. Significant differences between the programs can make judging eco labels challenging for consumers, and with dozens of similar yet competing certification programs and standards, chaos is likely for the foreseeable future.

Hops plants.

Powdery Mildew Control in Oregon Hops: The (Pint) Glass is Half Full

When the fungal disease powdery mildew first appeared in hop yards in Oregon in the late 1990s, it was devastating from both a production and integrated pest management standpoint. In the 20 years since that initial outbreak, researchers and growers have learned a lot about the disease and how to manage it. Just in the past few years, fungicide applications have dropped about 40 percent.

A shot from the video showing hops plants with the words "Powdery Mildew in Oregon Hops" on top.

VIDEO: Powdery Mildew in Oregon Hops

Hops growers in Oregon have been battling powdery mildew for nearly 20 years. But new research into the fungal disease has already cut fungicide application by 40 percent, and shows the potential of a coordinated, areawide approach in essentially eliminating it.

Jocelyn Millar in a lab.

Decoding Chemical Communications to Control Insects

University of California, Riverside chemical ecologist Jocelyn Millar identifies the chemical signals insects use to communicate, then synthesizes versions of them to help monitor, trap or disrupt their activities. Lygus bug is just one of dozens of species Millar and his team are working on. The common thread is that they all communicate chemically, and decoding those chemical signals can create new ways to control those species where they are pests.

a shot from the video of Nathan Rea talking in front of a field with the words "Why Walla Walla Valley Growers are Embracing Salmon-Safe Farming" on top.

VIDEO: Why Growers Embrace Salmon-Safe Farming

In growing numbers, farmers in the Walla Walla Valley are embracing salmon-safe farming practices to better manage their land, benefit local rivers – and get higher prices for their products.

An urban garden with the words "Urban Gardening: Pest Pressures and Solutions" on top.

VIDEO: Urban Farm Pest Pressures and Solutions

Learn about the pest pressures faced by urban farmers — and how integrated pest management provides economical solutions — with Ariel Agenbroad, Local Food & Farms Advisor with University of Idaho Extension.

A shot from the video of three people talking and eating lunch on grass. The top of the photo says "Improving Agriculture by Training New IPM Trainers."

VIDEO: Training Ag Professionals in IPM

A multi-state program in the Columbia River Basin is improving agricultural practices by training young ag professionals in integrated pest management.

A cow on top of a rangeland hill.

Hill-Climbing Cows May Bring Big Benefits to Western Rangeland and Ranchers

Conventional wisdom says cows don’t go up steep slopes. They don’t climb hills and don’t travel very far from water. But some cows never got that memo, and researchers are looking into whether naturally hill-climbing cows can provide production and environmental benefits in the rugged West.

A classroom.

School IPM Protects Kids from Pests and Pesticides

Both pests and pesticides are potentially harmful for kids and adults in schools. Common schools pests like the German cockroach or mice can carry disease and cause allergic responses. And children can be more at risk for harm from sprayed pesticides because of their behavior – playing on the floor or in grassy fields, for instance – and because of their developing physiology.

The Western IPM center logo.

IPM Adoption is Widespread in the West

Many integrated pest management practices are so widely adopted in Western agriculture they have become conventional pest management. That is one of the key findings of a new report by the Western Integrated Pest Management Center titled Adoption and Impacts of Integrated Pest Management in Agriculture in the Western United States.

A section of the front cover of a guide called "Medusahead Management Guide for the Western States."

New Guide Helps Land Managers Control Medusahead

As an ecosystem-transformer species, medusahead is among the worst weeds. Not only does it compete for resources with more desirable species, but it changes ecosystem function to favor its own survival at the expense of the entire ecosystem.

Someone holding two Prionus beetles.

Center Funding Helps Develop a Better Way to Control Prionus Beetles

Hop growers in the Northwest – as well as a sweet cherry, apple and other fruit growers around the nation – now have a new mating disruption tool to combat the Prionus beetle and its root-boring larvae, thanks to research funded in part by the Western IPM Center.

The Western IPM center logo.

Using IPM to Battle Bed Bugs in Public Housing

Public housing presents unique pest-management challenges, including rapid turnover of residents, language and cultural barriers and even second-hand clothing and furniture. And those pest problems – especially when bedbugs are involved – can lead residents to resort to some pretty drastic and harmful pest control strategies.

Different colors of onions drying in research plots.

Progress against Onion Pests

An update to the Pest Management Strategic Plan for dry bulb storage onions shows progress against thrips and Iris yellow spot virus, but still challenges to overcome.