Darling-58 sprouts, a transgenic American chestnut created by ESF researchers, grow in a nutrient solution. Darling 54, a ...

Idaho residents have a new summer pest to worry about: the elm seed bug (Arocatus melanocephalus). These insects, about 6 mm ...

There are a lot more trees around the Rockville section of Vernon these days, thanks to a state and federal program.

These 5 tree species are dying. Scientists are racing to save them. Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on ...

Ash trees are evolving resistance to a fungus which has decimated the species in recent years, a new study shows.

Since its introduction by enthusiastic horticulturists to the United States nearly 240 years ago as a shade tree and botanical specimen, Ailanthus has spread to all but six U.S. states, and has ...

Joel Harrison-Off, the acting supervisor of the city’s forest healthcare and management, said the tree is one of the largest native elm trees in Toronto and was one of the few survivors of Dutch Elm ...

Britain lost 25 million of its 'graceful giants', the elm tree — but there's finally real hope that they are coming back. Once the hallmark of a rural idyll, our English elms were almost eradicated by ...

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal ...

One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs. But as the city finalizes plans to take down the Barton Avenue landmark next week, a ...

Purdue Landscape Report: We have received a few elm tree samples this year with a disease we do not often see, but which is relatively common: black spot of elm.This disease, also called elm ...

In South America, which is home to the Amazon Rainforest, 3,356 out of the 13,668 assessed tree species are at risk of extinction due to deforestation for crop farming and livestock ranching.