How can conifers that are used, for example, as Christmas trees, keep their green needles over the boreal winter when most trees shed their leaves? Science has not provided a good answer to this ...

Pine Tree ISD Superintendent Steve Clugston announced New Year’s Day that he is running as a conservative independent to ...

California’s drought and bark-beetle infestation killed more than 129 million trees between 2012 and 2016 in the Sierra Nevada. But amid the devastation stood some survivors. At the time, UC Davis ...

Some Michiganders may be noticing a strange phenomenon occurring amongst jack pine trees: the needles of the trees browning and curling, causing the pines to appear barren and dead. Here's what's ...

YAKUTAT — “There they are,” Ben Gaglioti said, after a short hike off a gravel road leading away from this small fishing town. Gaglioti walked in rubber boots on a green, squishy carpet of muskeg — a ...

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 ...