That means prevention is key. “If you need to have an oak pruned to remove damaged branches or improve its structure, have it done in winter,” Yiesla said. Elms, too, should be pruned only in winter, ...

Using signs in nature to predict winter weather can be a lot of fun and just maybe anywhere from 65-70% accurate. The late Dick Frymire of Irvington, Kentucky, used a Japanese Elm tree, and a special ...

February's frigid temperatures boded well for the Grand Forks Park and Recreation crew who will combat Dutch elm disease this year. Typically, warm winters mean more bark beetles will survive, ...

On the St. Paul campus of the University of Minnesota, rows of tiny elm trees sprout in a test field run by University researchers. These elms are a series of new trees cloned by the University that ...