The pine beetle ... The forest service have reported stands of 20-75 trees infected with the bug throughout east Texas this summer. Three species of engraver beetles and the black turpentine ...

It's the signature tree of the mountain ... Steve Hirst of the U.S. Forest Service, who leads tours through the area. The trees with black bark were called black jack pine; those with yellow ...

Steve Nix is a member of the Society of American Foresters and a former forest ... The tree's bark is either dark or light grey and becomes checked with age. The sugar pine (Pinus lambertiana ...

she exclaims, poking at a small black ... the next few trees in search of more traces. Pill-size holes pock their ashen trunks—a sign, along with the missing pine scent, of a forest reeling ...

In a peaceful valley in southwest Custer State Park, the tallest known Ponderosa pine tree in the Black Hills towers above ... were featured in the paper, the Forest Service would probably spray ...

Image A single-leaf pinyon pine in the Inyo National Forest. It’s not entirely clear why bristlecones live so long, but one key seems to be that the trees’ sluggish growth, expanding as little ...