As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

A western pine beetle rests on a sap mound on a pine tree. - Charles Wollertz/Getty Images A thriving pine tree is a thing of beauty, but what if your pine tree doesn't seem so healthy? If you notice ...

Mountain pine beetle-killed trees at Lookout Pass in 2002. Provided by Idaho Dept of Lands. Bark beetles are only about the size of a grain of rice. But for such tiny critters, they can take a big ...

There is growing concern across Colorado about mountain pine beetle infestations. Neighbors in the Black Forest say they’re ...

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

My friend Roni and I were discussing an upcoming heavy pruning on her pine trees, which are growing into power lines. She said she was planning on using a systemic insecticide containing imidacloprid ...

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

Limber pine, as seen here along the Sky High Trail, San Gorgonio Wilderness, San Bernardino Mountains, California, can have smooth bark, which discourages bark beetles. Photo courtesy of Wikimedia ...

Bark beetles are only about the size of a grain of rice. But for such tiny critters, they can take a big bite out of the forest. There are more than 100 species of bark beetles in Idaho, said Gina ...