The Prospect Park Alliance is cutting down one-third of the trees in the Dog Beach Elm Grove because of Dutch elm disease.

The American Chestnut Project has evolved from basic research into a multifaceted endeavor, including identifying plant pathogen ... managing diseases affecting other important tree species such as ...

Twenty-nine elms were planted Monday in St. Helena's elm tunnel, part of a long-term effort to restore the tunnel.

aiming to protect these trees from elm disease for a year. The programme, now in its third year, will be expanded to include more trees within the city's parks. The inoculation process ...