Bark beetles can destroy spruce forests by converting the trees' defences into even more toxic substances, scientists ...

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

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 is ...

The seasons are changing from fall to winter, and one of the major changes to the environment is that the deciduous trees have lost their leaves. Evergreen trees may still have green needles, but all ...

Got young trees growing in your garden and live in a cold climate? Protecting your saplings from winter sunscald is essential ...

Once leaves drop from trees, splitting, peeling, bleached or oozing bark may become more noticeable. The cause can range from normal bark development to environmental causes or disease. If tree bark ...

Dear Grant, William and Kate, When I was little, I liked to climb trees. I loved to grip the bark as I got higher and higher. Now I mostly hug trees – but I still love the way bark feels under my paws ...

In fall or winter, homeowners often discover young trees whose thin bark has been damaged by deer rub. Some trees may have patches where bark hangs in shreds, exposing the underlying wood; in others, ...