They've devised a multi-pronged approach using three advanced scientific strategies: breeding, biotechnology, and biocontrol. Experts change how they will reintroduce endangered trees first appeared ...

Add Yahoo as a preferred source to see more of our stories on Google. There’s an old holiday tradition in the U.S. that's become increasingly harder to celebrate: fire-roasted chestnuts. Thanks to an ...

WASHINGTON — Billions of American chestnut trees once covered the eastern United States. They soared in height, producing so many nuts that sellers moved them by train car. Every Christmas, they're ...

FILE - Vernon Coffey, left, William Powell and Andy Newhouse prepare to harvest genetically modified chestnut samples at the State University of New York’s College of Environmental Science & Forestry ...

Federal regulatory approval for an experimental American chestnut tree made in Syracuse hit a snag recently when researchers discovered that they’ve been unwittingly experimenting with the wrong tree.

FILE - Vernon Coffey, left, William Powell and Andy Newhouse prepare to harvest genetically modified chestnut samples at the State University of New York's College of Environmental Science & Forestry ...