A three-story mature ash tree hangs over Sara Turnquist’s property in Iowa City. It has shaded her children’s play dates, meetups with neighbors and driveway basketball games for years. The ...

Without question or doubt, ashes rank as the most common and most abundant trees growing along our neighborhood streets and in our yards and parks. Elms rank much lower in abundance as street trees.

If and when the emerald ash borer hits the Twin Cities, “we’re never going to be talking about Dutch elm disease again,” said Ralph Sievert, director of forestry for the Minneapolis Park and ...

The emerald ash borer has decimated ash trees in New York, which once comprised 7 percent of the biomass of the state’s forests. In a region of Ulster County stretching from Kingston up to Saugerties ...