Diplodia tip blight is a fungus disease that kills the new growth on susceptible species of pine trees. The obvious sign of diplodia tip blight is seen in spring, when new needles at the tips of ...

The disease is restricted to hard or two- and three-needle pine species. Elytroderma needle cast has also been reported in North America on lodgepole, big-cone, jack, Jeffrey, knobcone, Mexican ...

The whitebark pine is a hardy tree that grows in an area stretching from British Columbia, Canada south to parts of California and east to Montana. It's a keystone species in its subalpine and ...

Honey fungus attacks roots and can spread to adjacent plants. You can easily identify a diseased tree in your yard by looking for symptoms like wilting branches, thin foliage, and the growth of ...

Healthy trees can drop the needles before the fungus works its way through the tree. However, most whitebark pine trees don’t have that ability, he said.

White pine blister rust, a non-native invasive fungus that slowly kills the tree, has wiped out more than 325 million whitebark pine trees and remain the primary threat to the species, according ...

Hazard maps are an important tool in disease management, serving as a guide on where to plant trees bred to be resistant to fusiform rust. However, many of the previous maps are outdated.

But the U.S. Fish and Wildlife Service announced Wednesday that it will protect the whitebark pine under the Endangered Species Act, warning that a number of menaces — a deadly fungus, a hungry ...

Key PointsResearch with Western Sydney University is exploring the symbiotic relationship between mycorrhizal fungi and pine ...

Grizzly bears in Yellowstone National Park can weigh up to 600 pounds. The whitebark pine nut weighs in at a thin fraction of an ounce. Yet the tiny seeds -- embedded in neat, brown cones -- can ...

Do you have a mature pine tree with bunches of brown needles? It may be suffering from a fungal disease called diplodia tip blight. “Diplodia has become more common due to environmental stress ...