In August 2011, homeowner Marlene Nickolai watched her largest elm tree (with a 49-inch diameter) cut down because of Dutch elm disease. Less than one year later, she watched the other six elms in ...

An area on the outside of a tree trunk that appears to be stained white or looks wet during summer is likely bacterial ...

Slippery elm is a supplement made from the inner bark of the slippery elm tree (Ulmus rubra), native to North America. Taking it as a supplement may offer a few health benefits, such as improving ...

However, almost all mature American elm trees have been killed in the last 50 years by Dutch elm disease, which is caused by a fungus, Ophiostoma novo-ulmi, introduced from Asia. Elm bark beetles ...

The Slippery Elm tree, indigenous to North America, is highly regarded for its health-enhancing properties. Its inner bark, passed down through the generations, is typically gathered and finely ...

To prevent the further spread of Dutch Elm disease to surrounding trees, the Central Park Conservancy and NYC Parks have cut ...

Likely originating in Asia, Dutch elm disease was first observed in the U.S. in the 1930s. Since then the disease has killed billions of elms around the United States and abroad, Held said. Spread by ...