A term coined by researchers, including DePinte, “Firmageddon” refers to the more than 1,875 square-mile die-off of five fir species in Oregon, Washington and northern California.

A basic Douglas fir tussock moth prevention strategy is to promote other native species. Growing native plants supports ...

Distinguishing between Idaho’s trees can be a daunting task for beginners. Through a combination of images and live samples, a three-hour workshop, "Identifying Idaho’s Trees," will help participants ...

As climate change pushes Europe's native forests to their limits, the North American Douglas-fir (Pseudotsuga menziesii) is emerging as a potential ...