The center of a tree or shrub stem (from roots to trunk, branches, and twigs) is woody, composed of xylem cells that conduct water from the roots to the upper parts of the tree. That woody section ...

When a pine tree is stressed, it will produce volatile compounds as a survival response. Unfortunately, pine bark beetles are attracted to these chemical.

Two trees with green trunks deserve mention. One is palo verde (Parkinsonian spp.), which means “green stick” in Spanish and references its green photosynthesizing bark.

Birch trees can have very distinctive bark– probably everyone knows the iconic white peeling bark of a paper (aka white) birch or the thin, golden tendrils that peel off a yellow birch. This ...

“The bark beetles currently killing millions of spruce trees every year in Europe are supported in their attacks by fungal associates,” said study co-author Jonathan Gershenzon, a biochemist ...

Bark beetle infestation slows down tree growth early on Date: March 3, 2025 Source: University of Eastern Finland Summary: Bark beetle-infested spruce trees begin to dry out already before any ...

Question & Answer Common culprits of tree damage Q. This is a very beautiful large tree that I lost last year. It’s the second one I have lost in the past seven years. Would you be able to see from ...

Environment Trees have an extra climate benefit thanks to methane-eating microbes Methane, a potent greenhouse gas, is converted to CO2 by microbes in tree bark, meaning trees are even better for ...