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Nursery and Greenhouse

Photo Credit: Goodpics - Adobe Stock (Cropped from original)

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Announcements

Emerald ash borer quarantine adopted in Washington County effective Dec. 20, 2022–May 16, 2023

The invasive pest emerald ash borer has been confirmed in Forest Grove and a temporary quarantine prohibiting the movement of tree materials was issued in Washington county. Read more...
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Latest Resources

Integrated Pest Management Strategic Plan for Oregon Nurseries (in English)

Ornamental nurseries face many pest management challenges, from weeds to insects to disease. In this report, industry representatives prioritize those challenges in an effort to increase the use of integrated pest management in ...

Chris Hedstrom | Jul 2022 | OSU Extension Catalog

Nursery IPM Extension Program (in English)

The Nursery IPM Extension program based at the North Willamette Research and Extension Center assists nursery and greenhouse growers to make informed decisions in all aspects of integrated pest management (IPM) including pest identification, monitoring, pest biology, thresholds, and pest management tactics.

Lloyd Nackley | Apr 2022 | Online resource

Saffron crop came out bland

P: We just finished harvesting our first good crop of saffron crocus from our yard. We often get many plants but only a few flowers. This year, we got about 50 blooms over a few weeks. After drying for a few days, we ...

R: View answer | View all featured questions

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Preventing Phytophthora Infestations in Restoration Nurseries

By Norma Kline ​​​​​​Marianne Elliott Jennifer Parke Dan Stark David C. Shaw ​​​​​​​and Alicia Christiansen

Phytophthora species are water molds that can kill plants. They can spread undetected in container plants and equipment. Once they are introduced to an ecosystem, it's difficult or impossible to eradicate them. Nurseries can help prevent the spread of Phytophthora by following some simple steps.

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Photo Credit: RG - Adobe Stock (Cropped from original)

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Latest News

Fledgling olive industry gets support from OSU research

OSU Extension the and Oregon Agricultural Experiment Station started Olea: Olive Research for Oregon.

Neil Bell | Feb 2022 | Impact story

Sightings of spotted lanternflies worry farmers, nursery industry

So far, there’s no known infestation in Oregon. If one establishes, many of Oregon’s high-value industries may be affected, including wine grapes, nursery and tree crops, small fruits and timber.

Kym Pokorny | Jul 15, 2021 | News story

OSU Train the Trainers workshops keep agricultural workers on track with food safety

It’s vital to train workers correctly because the agricultural workforce plays an important role in the prevention of food contamination.

Luisa Santamaria | Apr 2021 | Impact story

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Meet Our Experts

Brian Hill
Faculty Research Assistant

Contact for shade tree production, irrigation, soil and soil sensor questions

Marcelo Moretti
Assistant Professor

Contact me with questions about weed management in commercial agriculture.

Lloyd Nackley
Nursery Researcher
Jay W. Pscheidt
Plant Pathologist
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Saffron crop came out bland

P: We just finished harvesting our first good crop of saffron crocus from our yard. We often get many plants but only a few flowers. This year, we got about 50 blooms over a few weeks. After drying for a few days, we ...

R: View answer | View all featured questions

See More Questions