Scientists found some trees simply aren’t susceptible to the fungus. Researchers isolated the seeds from those trees and grew seedlings in a lab setting. The trees that grew were also resistant to ...

Peering up at a towering five needle pine tree in the Tahoe Basin you might not notice they are in danger. Take another look; you might see the man trying to save them. John Pickett, Nevada Fire Safe ...

The U.S. Forest Service is growing "elite" whitebark pine trees to improve the chances of survival of the key high-elevation species, which blister rust is wiping out in the Northern Rockies. "It's ...

A lone sugar pine, rising behind a North Shore neighborhood near Brockway Summit, is bursting with yellow-orange blisters ” a sign that the tree will likely die within the coming year. Like the canary ...

Some of us are starting to notice yellow-orange spots on the leaves of their ornamental or fruiting pear trees. These spots begin in the late spring on the upper surface of leaves, approximately 1/8 ...