including this 1500-year-old [bristlecone] tree that had succumbed. I’m no beetle expert, but it looked to me like possibly mountain pine beetle had infected it,” Kitchen said. “There were ...

infestation by mountain pine beetles and a deadly fungus called blister rust — they're collectively killing this tree. Losing whitebark pine on the landscape does not mean just losing one type ...

Find it: In moorland, old native-pine woodland, and rocky areas of the open hill, especially in Scotland. ID: An evergreen shrub or small tree with densely growing, stubby blue-green needles ...

The trees are fighting an uphill battle. The invasive blister rust fungus, mountain pine beetle infestations, changing wildfire patterns and climate change all threaten this keystone species.

A critical species to the ecosystem is facing a variety of threats. This Earth Day, ABC News is taking a look at solutions for issues related to climate change and the environment with the series ...

Forestryimages.org provides several images of parts of pinyon pine. The tree is a conifer and the ... Pinyon is native to the southern Rocky Mountain region, predominantly in the foothills ...

The pest is none other than the mountain pine beetle ... reddish-orange and gray as the beetles killed countless pine trees across the region. Colorado’s popular recreation areas were hit ...

As you might be aware, El Paso County and much of Colorado is seeing an uptick in mountain pine beetle (MPB) activity. MPB is a native insect that usually attacks weaker trees as part of a natural ...

Earth’s oldest, knotted and scarred pine trees are a boon for forest life ... They studied young, adult and extremely old mountain pines in five different areas of the Spanish Pyrenees mountains.