Could a fungus found in the Torrey Pines State Natural Reserve be deadly for Torrey pine trees in La Jolla Shores’ Kellogg Park? Representatives of California State Parks have noticed that trees at ...

BILLINGS, Mont. (AP) — Climate change, voracious beetles and disease are imperiling the long-term survival of a high-elevation pine tree that’s a key source of food for some grizzly bears and found ...

White pine trees in New Hampshire have been dropping needles this spring but the state Forest Health Bureau says not to be concerned: It’s the result of last year’s rainy late spring and summer and ...

The genome of the fungus that helps mountain pine beetles infect and kill lodgepole pines has been decoded in a University of British Columbia study. Also known as blue stain fungus for the stain it ...

Forest pathologists take a much different view. ‘‘A lot of trees are going to be killed,'' said John Schwandt, national whitebark pine coordinator for the Forest Service. ‘‘A lot of the seeds that ...

Japanese black pine tree with a blue sky in the background - Mawaddah Fauziah/Getty Images Japanese black pine (Pinus thunbergii) is an incredibly striking, hardy tree with iconic long needles and ...

CONCORD — White pine trees in New Hampshire have been dropping needles, but that is to be expected after last year’s rainy late spring and summer, according to the N.H. Forest Health Bureau. For the ...

About 100 seedlings of the whitebark pine tree were planted in Central Oregon early last month. The goal is to help increase their population as it has declined due to fungal disease, bark beetles and ...

Forestry experts have released an interim report that identifies a mix of factors they believe contributed to concerns regarding the health of thousands of acres of pine trees in southeastern Arkansas ...

The only wild population of the precious Wollemi pine is under threat from a fungus that has already wiped out other trees, Australian experts say. And unauthorised visitors to a remote valley west of ...

Some whitebarks have genetic resistance to blister rust. By identifying those trees and cultivating their seeds, researchers hope to grow new rust-resistant forests in the future. Whitebarks, however, ...