Rare white-letter hairstreak butterflies have been spotted after volunteers planted elm trees.

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal culminated in ...

Purdue Landscape Report: We have received a few elm tree samples this year with a disease we do not often see, but which is relatively common: black spot of elm. This disease, also called elm ...

A new invasive insect is emerging in Central Ohio, and state officials want to know if you see one. Elm zigzag sawfly adults were trapped in Delaware County the week of April 15, according to the Ohio ...

Some trees and shrubs have a bad reputation for being susceptible to diseases: lilacs to powdery mildew, junipers to juniper tip blight, flowering crabapples to apple scab, and elms to Dutch elm ...

BUCHANAN, Va. (WDBJ) - On the grounds of the historic Wilson Warehouse in Buchanan, a sleeping giant has been discovered peeping over the roofline. “I knew we had a pretty significant tree for this ...

WISCONSIN (WQOW) - A new invasive species is making its way through the Badger State. The Wisconsin DNR said the elm zigzag sawfly has been detected in at least 17 counties. It's a caterpillar native ...