With so many varieties sold as Christmas trees, knowing what differentiates a Douglas fir from a Norway spruce is key to ...

If you’ve ever had a Christmas tree start shedding needles just days after decorating, you know how frustrating it can be. The good news is that some pine varieties are better at playing the role of ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

Pine Tree Acres, Mountain Valley Ranch and Highland Valley Christmas Tree farms will be open at various times this week.

BISHOP, Calif. — Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically ...

New models developed by University of Georgia researchers may help guide the fight against rust disease, according to a new study. The paper is published in the journal Forest Ecology and Management.

PINE BELT, Miss. (WDAM) - Pine trees are a staple of the community. but what happens when one gets infested or damaged? “When you plant one kind of tree, if there’s a disease or an event that happens ...

A critical species to the ecosystem is facing a variety of threats. This Earth Day, ABC News is taking a look at solutions for issues related to climate change and the environment with the series, ...

A tree gets rid of White Pine Needle Disease by shedding all the needles infected by fungi. Before the needles fall, they will turn shades of yellow and brown. Photo by Emma Malinak/VTDigger Drive ...