A state’s insect expert called the discovery of a tree-killing bark beetle in a Bothell ... to map the migration of the beetle. Anyone who sees pine trees with red needles near its top are ...

An insect known for turning entire mountainsides the color of rust could be making a resurgence in Colorado. The pest is none ...

This week on ID That Tree ... the state, the Red Pine. This species, which enjoys sandy soil, is identifiable by its small, egg-shaped cones, as well as tufts of needle pairs, which can be quite ...

(The first was the red flour ... every tree near Wolf Creek Pass. The pine beetle epidemic has peaked in Colorado, but attacks by spruce beetles—which also burrow through bark—are still ...

Romaine said more focus is needed on ending the decade-old infestation of Southern pine beetles ... tiny insects burrow under the outer bark of the trees, laying eggs and building tunnels that ...

The southern pine beetle destroys trees by digging tunnels through its bark, limiting a tree’s ability to move nutrients through its trunk. By killing trees, southern pine beetles also destroy crucial ...