The needles are the primary distinction between other pines, including the red pine with two needles ... resembles a white ...

These pests normally attack stressed and dying pine trees and usually do not attack healthy trees.

Two white pines planted in the landscape; one is developing a general chlorotic appearance. White pine showing symptoms of decline on branches where the bark is shriveled and sunken. Depending on the ...

White pine decline causes pale green or off-color limp, drooping needles that later turn brown. The bark may be spongy and may shrivel and ooze sap. Usually, the entire tree is affected at once ...

Other than various native conifers (such as white pine and hemlock), this species is probably the largest tree in eastern North America. Its leaves are relatively large, as trees' leaves go ...

White pine blister rust, an invasive fungal disease, is the primary threat to the pine. Dead red branches and orange-rimmed canker sores are signs of the disease, which can eventually kill the tree.

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 ...

Climate change, wildfires and a deadly fungus threaten this iconic tree The U.S. Fish and Wildlife Service announced that it is listing the whitebark pine as threatened under the Endangered ...

Needles remain on the tree for two to three years before dropping in the fall. The bark on younger trees is dark and relatively smooth, and becomes quite furrowed in older trees. The eastern white ...

Most of us are probably within arm’s length of a piece of Pinus strobus secondary xylem, more casually called white pine wood.

Pine trees are one of the most common coniferous species in North America. Learn how to identify the types found in the United States and Canada.