It's the most common tree in Douglas County, but it's also under threat from the mountain pine beetle. As Colorado Gov. Jared ...

Do you have a mature pine tree with bunches of brown needles? It may be suffering from a fungal disease called diplodia tip blight. “Diplodia has become more common due to environmental stress and ...

Right now, because the trees are all the same age and are in close proximity, it’s sort of a ready-made buffet for the mountain pine beetle,” Colorado’s state forester says.

Is that tree a pine, a fir or a spruce? Here's a handy guide to identifying the many species of trees populating Central ...

The genus Pinus is the largest group of conifers, and it is made up of pine trees. There are nearly 90 species of pine trees found throughout the globe, many of which have value for lumber, pulp, ...

Pine beetle infestations are quickly spreading across large areas of Colorado's ponderosa pine forests prompting action from ...

If you are inclined to prune your pine trees, now is the perfect time to do so. Most people don’t prune mature pine trees, but many prune mugho pines, which are more of a shrub. Pruning these keeps ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. In the biology of pine trees, the cone is actually not the seed at all, but a ...

If you bought a live pine tree for Christmas, you may be thinking about planting it in your yard. Here in Tucson we are in Sunset Zone 12. Most pine trees that do well in our desert are imports from ...