Dutch elm disease (DED) is a devastating fungal disease ... Another study investigated the physiological responses of different Ulmus species to DED, focusing on how mechanical injury and pathogen ...

American elm trees (Ulmus americana) were once very common as forest and landscape trees in the eastern U.S. Their graceful vase shape and wide canopy made them especially popular for lining city ...

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 ...

Unfortunately, it is now the time of year to put the pruners away to prevent the possibility of Dutch elm disease and oak wilt from infecting your trees. Neither elm nor oak trees should be pruned ...

But treated or not, in recent weeks there has been a rise in elm deaths on campus. Some chemically protected elms have contracted Dutch elm disease, raising questions about the validity of fungicides.

Veit expects those older trees to succumb to Dutch elm disease at some point, but there are also dozens of younger elms in the city, some of which are varieties that are supposedly resistant to ...