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 ...

Vast swaths of the ponderosa pine forests that blanket Colorado's Front Range mountains could turn rust-colored and die over ...

The seasons are changing from fall to winter, and one of the major changes to the environment is that the deciduous trees have lost their leaves. Evergreen trees may still have green needles, but all ...

The most common causes of death for newly planted trees are drowning and planting too deep, but the third most common hazard is bark borer beetles and their larvae, borer worms. These three problems ...