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Forest Health Fact Sheet: Sudden Oak Death (Phytophthora ramorum)

Gives basic facts about a serious plant disease called Sudden Oak Death, caused by the pathogen Phytophthora ramorum. Describes risk of disease to forest health and to commercial nursery industry. Shows disease ...

David C. Shaw | Jun 2007 | Extension Catalog publication Peer reviewed (Orange level)

June 2021 heat impacts on trees explained

The June 2021 heat wave caused significant damage to trees in Oregon. Learn some key findings on causes, types of damage, physiological "thermotolerance" of trees, and possible forest management implications.

Glenn Ahrens | Jan 2022 | Article

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 | Jan 2023 | Extension Catalog publication Peer reviewed (Orange level)

Identifying and Managing Mountain Beaver Damage to Forest Resources

The mountain beaver is a medium-sized rodent of the western Pacific Northwest. Mountain beavers cause damage to forest regeneration by clipping or girdling seedlings or saplings or both, and undermining roots. Methods...

Jimmy Taylor, Donivan Sphar, Glenn Ahrens | Jul 2013 | Extension Catalog publication Peer reviewed (Orange level)

Western Oregon hay

Because of our typically wet springs in western Oregon, the average hay crop usually ends up being of low quality. However, when forage in the field is young and tender it is of high quality. As the forage matures, it ...

Shelby Filley | May 2013 | Article

Thinning in Mature Douglas-fir Stands in Southwest Oregon: A Case Study

Dive into a case study on thinning in mature Douglas-fir stands. Nearly all the trees in the study responded with increased growth and improved stress resistance.

Max Bennett, Marty Main | May 2018 | Extension Catalog publication Peer reviewed (Orange level)

Common Insect Pests and Diseases of Sitka Spruce on the Oregon Coast

Sitka spruce is among the world's fast-growing trees and the largest of the world's spruces. It's a valuable commercial timber. Its range extends from Alaska to northern California, but it faces unique problems ...

Jim Reeb, David C. Shaw | Jan 2015 | Extension Catalog publication Peer reviewed (Orange level)

Revenue Sources for a Commercial Beekeeping Operation in the Pacific Northwest

Pollination services and honey production are the primary revenue sources for a beekeeping business based in the Pacific Northwest. Those starting a beekeeping operation should focus on two to three revenue sources ...

Ellen Topitzhofer, Carolyn Breece, Dan Wyns, Ramesh Sagili | May 2020 | Extension Catalog publication Peer reviewed (Orange level)