Pest and Plant Disease Management

Exploring biochar as an alternative sudden oak death treatment

Sudden oak death disease has killed thousands of tanoaks on Oregon’s south coast. Since it was detected in Oregon in 2001, the standard practice to help slow the spread of the pathogen that causes the disease has been ...

Apr 2024 | Impact Story

Extension equips Baker County land managers to face the challenge of invasive and noxious weeds

Invasive and noxious weeds are one of the leading causes of land degradation in Eastern Oregon. Affected areas include over 500,000 acres of range and pastureland and countless miles of streams and waterways. It’s difficult for...

Mar 2024 | Impact Story

School IPM Program protects health and safety of Oregon children

Asthma is the top cause of absenteeism in U.S. public K-12 schools. Mice urine is an asthma trigger, and mice are one of the top pests in Oregon schools. Mice and other pests can carry numerous life-threatening diseases. ...

Jan 2024 | Impact Story

OSU’s 10-year study gives organic blueberry growers a leg up

Finding ways to reduce costs while increasing production is critical for organic blueberry growers. Organic fertilizers cost 10 times more than conventional products and approved herbicides are less effective and costlier. The Oregon ...

Apr 2023 | Impact Story

OSU Extension newsletter helps mint growers save money on pest control

Oregon ranks second in the United States in mint production, with a value estimated worth $28.7 million in 2022. Losses from pests like mint root borer and variegated cutworm can eat into farmers’ profits. These two most ...

Apr 2023 | Impact Story

OSU Extension outreach helps slow the spread of deadly X-disease in cherries

Cherry growers in the Columbia River Gorge dread the emergence of X-disease, which makes cherries small, flavorless and unmarketable. At least 239,856 cherry trees were removed between 2015-2023, costing growers an estimated $115 ...

Apr 2023 | Impact Story

Solve Pest and Weed Problems website gives gardeners solutions

Pests and diseases are the bane of the gardener’s existence. One minute there’s a healthy cucumber, the next it’s a moldy mess. Searching for reliable information can be frustrating, particularly for research-based knowledge ...

Mar 2023 | Impact Story

OSU Extension helps Klamath County farmers save forage by detecting and suppressing grasshoppers

In the summer of 2021, Oregon suffered its worst outbreaks of grasshoppers and Mormon crickets in 50 years. Light infestations – six to seven grasshoppers per square yard across 10 acres – will forage as much as one ...

Feb 2023 | Impact Story

OSU Extension, partners inform south coast of new sudden oak death threat

Sudden oak death (SOD), caused by a non-native pathogen Phytophthora ramorum, has killed more than 1 million oak and tanoak trees in 15 coastal counties in California and thousands of tanoaks in Curry County, Oregon. The ...

May 2022 | Impact Story

OSU research results in glysophate alternatives for wheat farmers

Eastern Oregon wheat farmers face a daunting situation – persistent weeds becoming resistant to the commonly used herbicide called glyphosate. In the Pacific Northwest, Russian thistle infests nearly 5 million acres and costs ...

Apr 2022 | Impact Story