Then there is the fungus, Beauveria bassiana. This fungus is neither the tree’s nor the beetle’s friend; as a pathogenic ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

It’s been a tough winter on my spruce trees, and we’re only in December! The heavy snow and high winds have pulled a lot of ...

Bark beetles convert spruce tree defenses into more potent antimicrobials to protect themselves, but a fungus can neutralize ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. We were pushing ...

In most Chicago suburbs, you can’t drive a block without seeing a spruce tree. Norway spruce, blue spruce and white spruce are among the most popular trees in the area, prized for their winter color ...

Q: What's killing Colorado blue spruce trees? My parents just had one cut down in front of their house, which made me start to take notice to others dying in the area. I have noticed dying spruces ...

You may have heard that pruning spruce trees in the landscape is an important way of maintaining their health, size, shape, and vigor. But this is more applicable to deciduous trees than evergreens.

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

Trees contain valuable information about Earth's past, so much so that studying their rings may help fill in hidden gaps in ...

We were pushing through head-high willows along a brushy caribou trail, five days into our week-long trek across Alaska's Noatak valley, when my hiking partner, Brad Meiklejohn, startled me with a ...