American elms are elegant and beautiful native North American trees. Sadly, their numbers have been decimated by Dutch elm disease, which is caused by a pathogenic fungus called Ophiostoma novo-ulmi.

A high range allergy alert has been issued due to extreme levels of cedar and elm tree pollen, posing a serious risk for ...

Pittsfield has received a $65,800 grant to plant 40 native shade trees in a neighborhood as part of the state's Cooling ...

decimating elm populations in its wake. Sudden Oak Death is one of the plant problems affecting oak trees, particularly coast live oaks and tan oaks, along with several other plant species.

It was a disease that decimated towering trees across the country. In the 1970s, an outbreak of Dutch elm disease led to the loss of 90pc of elm trees, with 25 million falling victim to the ...