Palm tree is very beneficial for health. It is a tall tree and along with its leaves, its bark and stem also provide many ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study from the University of Eastern Finland shows.

The researchers wanted to compare stem diameter variation between healthy trees and those infested by bark beetles. There is natural diurnal variation in stem diameter: during the day, trees ...