Currently, the emerald ash borer has been found in trees only in Washington County, where a quarantine prohibits moving ash (Fraxinus) or fringe tree (Chionanthus) wood in or out of the area.
Streams and streambanks are vital but vulnerable wildlife habitat. Learn the steps you can take to improve vegetation and water quality on your riparian property. These recommendations can help protect birds, fish ...
While relatively healthy, forests in western Oregon face threats from climate stress, insects and disease. Here's a look at forest management strategies to cope with those threats and keep the state's forests healthy.
This is a bilingual publication (English and Spanish) for landscape workers and the public to help them protect Oregon birch trees from this damaging pest. Includes insect identification, host plants, signs and ...
In recent years, cherry growers in the Pacific Northwest and elsewhere have embraced high-density systems that put twice as many trees in the same amount of space. Here's a look at how their efforts are working out.
Lynn Long, Tim Facteau, Roberto Nuñez-Elisea, Helen Cahn |
Jun 2018 |
Article
Photo Credit: Whitney Cranshaw, Colorado State University, Bugwood.org (Cropped from original)
Q: I had an arborist out because one of my birch trees had died and needed removal. He said it was the bronze birch beetle and that it was beginning to affect a second birch. He said it could be treated with a ...