Truth is, we don’t know how the Tree of Life will fall, and we don’t know when. It could happen in five years, in 40 years, ...

A spruce is a tree of the genus Picea, a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal (taiga) regions of the earth.In ...

Dave Powell/USDA Forest Service (retired) / Bugwood.org. All spruce trees have sharp-pointed needles that are often 4-sided or diamond-shaped in cross-section and have four whitish striped lines.

In the Thuringian Forest or the Harz Mountains, dead spruce trees (Picea abies) dot the landscape like skeletons. Many have ...

Annual cold snaps have kept some invasive tree pests in check, but outbreaks could become more common with warming ...

According to ODF, the spruce aphid is "a long-established exotic and invasive insect" that can experience periodic outbreaks that hurt Sitka spruce trees along the West Coast and in Oregon.