Spruce bark beetles don’t just tolerate their host tree’s chemical defenses—they actively reshape them into stronger ...

Learn more about the chemical arms race between a fungus, a tree, and a beetle.

Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats.

The Acrocona Norway spruce (Picea abies ‘Acrocona’) is an enchanting conifer, sometimes called the red-cone spruce. This spruce has new needles of bright green, which mature to a pleasant dark green.

From the Northern European Steppes, the Norway spruce amazes people with its impressive longevity and size. The tree can rise to over 150 feet and has long drooping branches that give its distinctive ...

Scientists discovered microscopic gold forming inside tree needles. Hidden microbes convert dissolved soil ions into solid metal, offering a greener, innovative approach to exploring underground ...

Up hills, around corners, and swooping through the woods I went as my skis swooshed beneath me and poles gripped the trail. A pink sunset glimmered wistfully between the trees, and a pair of ravens ...

An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

Back 100 years ago, the Norway spruce (picea abies) evergreen tree was popular and over-planted. For example, our 1-acre property had nine of these large trees when we moved here in 1960. While they ...

WEST STOCKBRIDGE — In the minutes after the chain saw ran through the base of the Norway spruce tree headed for holiday fame, the 71-foot giant hung in stasis before it finally laid horizontal. It was ...

Q: We have two 'Little Gem' dwarf spruce plants that have been fine and very low maintenance up to now. But I'm seeing a lot of brown needles near the bottom of the shrubs. Is this a disease or some ...