The latest assessment of forest health in Colorado shows the Aspen area is experiencing a steady spread of infestation from Douglas fir beetles, but Pitkin County overall is faring much better than ...

Lush, sprawling forests, trails littered with cones and the clean, waxy smell of evergreens in the crisp morning air: Colorado. This state is known for its towering lodgepole pines, pale blue spruces ...

Observers who are noticing dying conifer trees around the Roaring Fork River watershed can blame the Douglas-fir beetle. The valley has avoided many of the insect infestations that have decimated ...

Add Yahoo as a preferred source to see more of our stories on Google. ’Tis the season for conifers—whether they are being decorated for a little Christmas cheer or merely serving as a vibrant, verdant ...

“Prune a conifer?” you ask. Well, as Dylan Thomas said, we need “to begin at the beginning.” Conifers are cone-bearing trees that produce tiny pollen cones in spring followed later by more substantial ...

Minnesota foresters are still dealing with the big blowdown that occurred in Bemidji last summer, hoping this year's fire ...

Landscape and forest trees are experiencing widespread dieback this spring according to Glenn Ahrens, Oregon State University Extension Forester for Marion County. "Browning or dieback is usually ...

Spanish fir (Abies pinsapo) is a gorgeous conifer that is too rarely seen in Northwest gardens. Hardy to minus-10 degrees, the species originates from the mountains of Spain and Morocco, where ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Bark beetles are the most devastating insects to attack pines, and they exist ...

As summer drains away and autumn brings cooler temperatures and snow to the mountains, Central Oregonians might find comfort in our wealth of evergreen trees. But how much do we know about these ...

As you looked out the windows of your house this winter at all the dormant and barren deciduous trees in your landscape, perhaps you thought that a little green would be a nice addition this year. But ...

Observers who are noticing dying conifer trees around the Roaring Fork River watershed can blame the Douglas-fir beetle. The valley has avoided many of the insect infestations that have decimated ...