Your local Christmas tree lots, farm ... Trees with the second-longest life span include Douglas fir, Scotch pine, balsam, and grand fir. Spruce trees last only two or three weeks.

The Bug That’s Eating the Woods.” “Small Pests, Big Problems: The Global Spread of Bark Beetles.” “Eighty-Nine Million Acres ...

The Douglas fir and ponderosa pine seedlings destined for the Quarry ... per se and that’s because when we think of the life of a tree, nobody is going to be watering it in 50 years and so ...

I enjoy Douglas fir as much as the next person ... on how elaborate you wish to go; an artificial tree that comes with its own faux pine cones, for example, will run you more than a classic ...

Ponderosa pine and Douglas-fir forest in the Payette National Forest, Idaho, nine years after it burned in the 2007 East Zone Complex Fire. Disclaimer: AAAS and EurekAlert! are not responsible for ...

It’s not uncommon for saplings to take up residence on another tree or log, but Adam was fascinated by the way this one had used a submerged Douglas fir stump as a nurse log. ‘To me, the little tree ...

A new state report out this week finds conifer tree deaths – including iconic species like the Ponderosa and Pinyon pine – ...