Tree health specialists scan forests, looking for fir trees that have turned red, ... observers scan terrain in a grid-like pattern, analyzing about 30 acres per second, DePinte said.

Now, researchers at the University of Texas at Arlington are using artificial intelligence to take the guesswork out of ...

As the adelgid feeds, it injects toxic saliva into the tree, causing the needles to drop, eventually leading to tree death. The DNR says this poses a threat to both forest and landscape hemlocks.

If your gorgeous Douglas fir is looking sickly or defoliated, there’s one pest you’d better check for, and fast! We show you ...

With oil prices at their highest level in three years, it would seem a good time to cash out of energy investments purchased cheaply during the oil rout. Hedge-fund manager Fir Tree is finding it ...

Drought-stricken Oregon saw a historic die-off of fir trees in 2022 that left hillsides once lush with green ... Pilots fly in a grid pattern with flight lines about 4 miles apart to ...

COEUR D'ALENE, Idaho -- If you want to impress your friends with your tree knowledge on your next hike, check out the upcoming class from UI Extension Forestry. On April 26, The UI Extension ...

Monarch butterflies flock to Mexico’s oyamel fir forests each year, where they cling to tree branches during their winter hibernation. Tomas Vrba and Lindsey Parkinson/500px Prime/Getty Images Plus ...

SEATTLE — A Douglas fir was cut down Monday in Seattle's Maple Leaf neighborhood after activists attempted to stop the tree's removal. Pacific Tree Management cut down the tree near 90th Street ...

A fir tree has been found growing inside a man's lung by surgeons who were operating on him for suspected cancer. The tree, measuring 5cm, was discovered by Russian doctors when they opened up ...

Four students of Std VII have written a secret letter to the superintendent of police (SP), Amravati rural, Hari Balaji, complaining against a politically influenced teacher making undue advances ...