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.
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...
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.
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 ...
Horse owners must know how to evaluate and buy good-quality hay. Learn about the horse's digestive system, nutrient requirements and hay evaluation methods.
Gordon B. Jones, Scott Duggan, Melissa Fery, David Hannaway |
Mar 2024 |
Extension Catalog publicationPeer reviewed (Orange level)
Shore pine is a subspecies of lodgepole pine that inhabits the coastal strip in Oregon. Insect pests, diseases, and nonbiological (abiotic) factors may have an impact on growth, visual appearance, and productivity ...
Late winter and early spring can be a perilous time for livestock. It's a time when even a full stomach won't stave off starvation. That's why livestock managers must pay close attention to the health of their animals.
Oregon State Extension Service and other agencies are working together to help landowners recover from wildfires. The effort includes assessing reforestation needs, acquiring seedlings and facilitating restoration.
Fires and ice storms in recent years have done serious damage to young forest stands in the Willamette Valley. Without much salvageable timber, landowners must decide how to restore the stands. Here are some options.
Glenn Ahrens |
Jun 2021 |
Article
Illustration by Eiko Goto. (Cropped from original)
Fruit trees and grapevines have been grafted for centuries but the grafting of vegetable plants is relatively new. It started in 1927 in Japan and has since grown to be a common practice with environmental benefits.
Toshihiko Nishio, Alice Formiga (editor and translator), Shinji Kawai (editor and translator) |
Jul 2018 |
Article