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Trees to Know in Oregon and Washington
NEW! 70th Anniversary Edition! For 70 years, people have turned to one book to learn about Northwest trees. This edition expands its scope, covering even more species of trees — including several rare species native to ...
Garden Ecology Lab shares research-based information for home and community gardens
Launched in 2017, it’s the first lab in the United States wholly focused on socio-ecological research in home and community gardens.
Solve Pest and Weed Problems: A New Resource for Master Gardeners and the Public
This webinar is part of the 2020 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University Extension.
Tree School Clackamas teaches love for the land
Educational event draws hundreds from woodland community in Clackamas County and beyond.
Can you identify this black and white bug?
Q: I have lived in Oregon all my life and never seen this kind of bug before, what is it? It's not very fast moving, this one wasn't anyway.
How can I get my clothes unsapped?
Q: How do I get pine sap off of clothing?
International Society of Arboriculture (ISA) - Pacific Northwest Chapter
The Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA) is a member organization for arborists and urban foresters. We bring together professionals from Alaska, Idaho, Oregon, Washington, and British Columbia. Since 1979, we have been a resource and advocate for the green industry.
What is up with this tree?
Q: We had a viewer send in this photo of a tree in Cedar Canyon near Banks, Oregon. We posted this to the OPB/ Oregon Field Guide Facebook page and now I feel a responsibility to give folks an accurate ID of what is causing this strange formation atop the tree. Mistletoe? Witch's Broom? Something else?
Are there insect issues with birch trees?
Q: Is it true that white paper birch in the Willamette Valley have been infested with insect like beetle? I wanted to plant one this spring and my yard maintenance service told me I should consider a different type due to the insect problem.
Wild red asparagus, yum or yuck?
Q: Found in numerous places in our garden. Is it poisonous? Would like some additional info. Understand that it is rare.