Mixtures of different defense substances: Spruce trees require various monoterpenes — typical components of resin — to combat bark beetles and the fungi associated with them. Specific defense ...

Norway spruce trees produce various monoterpenes to defend themselves against both bark beetles and microbial pathogens.

Have you ever paused beneath a towering oak or maple and wondered if that rough, gnarled bark is hiding secrets? What if I told you ... Read more The post What Tree Bark Can Tell You About Local ...

The Department of Biochemistry at the Max Planck Institute for Chemical Ecology is investigating how spruce trees defend themselves against bark beetles and fungi and how these insects and their ...

In Arizona, surveyors found bark beetles have killed trees on about 300,000 acres this year, slightly more than a spike in 2013 but far less than a decade earlier.

Timeless though art may be, The Works Art & Design Festival is in the midst of a banner year: the Big 4-0 — and a celebration of life on Earth itself.

Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the larger ecosystem of Yellowstone National Park. Long before Yellowstone ...

Sitting in an old-growth spruce fir forest, Doug Smith says he can see firsthand ... like willows and stands of white bark Aspen trees. When wolves were reintroduced, they preyed on elk, which reduced ...

Some trees across Prince Edward Island are dying as the population of spruce bark beetles surges because of stress and damage caused by post-tropical storm Fiona in 2022. Experts say the beetles’ ...

Annual cold snaps have kept some invasive tree pests in check, but outbreaks could become more common with warming ...

I noticed a lot of small twigs with leaves on them under my oak tree and became concerned about the oak. It is a large, ...

As property owners and state foresters across Northeast Michigan continue to remove damaged or downed trees this summer from ...