Foresters are looking to hone their management of Douglas fir trees in the wake of a new state report that says a changing climate likely will worsen the spread of a root-devouring fungus. A special ...

Barry Goldfarb, Earl E. Nelson, Everett M. Hansen, Trichoderma Species from Douglas-Fir Stumps and Roots Infested with Phellinus weirii in the Western Cascade Mountains of Oregon, Mycologia, Vol. 81, ...

Kevin J. Beiler, Suzanne W. Simard, Daniel M. Durall, Topology of tree–mycorrhizal fungus interaction networks in xeric and mesic Douglas-fir forests, Journal of Ecology, Vol. 103, No. 3 (May 2015), ...

Sarah and Joel Bond's home, seen in this provided photo, is unlivable after a huge Douglas fir tree they'd been denied permission to remove came down on it in the January winter storm. The family ...

(1) Conifer and angiosperm fine-root biomass were determined in an age sequence (range 13-160 years) of eight high-productivity and seven low-productivity Douglas-fir stands in western Washington, U.S ...

The Bonds were denied a permit by the city to remove the Douglas fir that would eventually crush their home. (Allison Barr) The city’s tree code is stringent for a reason: As the earth’s ...