The leaf of an American elm tree. (Tamara Yakaboski ... Lewis & Clark elm; Princeton American elm; and Valley Forge American elm. There also are species of elms that are Dutch-elm-disease ...

Both the Park Service, on its land, and Casey Trees, on city streets, are planting recently developed disease-tolerant varieties of American elm. Since 2003, more than 600 Princeton American elms ...

A portion of the project began in 2015 when 11 new Princeton American elm trees were planted at Toomer’s Corner following the Corner Construction project. The trees were planted using silva-cell ...

Can a tree outrun a fungus? Possibly, if the American elm is given a head start, experts say. The iconic, vase-shaped giant has a lot of catching up to do. Handicapped for at least six decades by ...

"The 'Princeton' is probably the best American elm in the most supply." Such promising news gladdens the hearts of urban foresters who have long argued that the elm is about the best street tree ...

A Princeton American Elm tree will be dedicated Thursday in memory of Debbie Pearsall, '12, who passed away in January. The tree was planted outside Coppee Hall in early April, and the dedication ...

But they also mark the return of a great American tree. The elm, in precipitous decline in ... planted now along Pennsylvania Avenue is called Princeton and has been around the longest.

American elms once were known for their glorious leafy canopies spreading over city streets. But after the arrival of Dutch elm disease, elms became associated with garish blaze-orange rings ...