Sanitation is critical for control of Dutch elm disease. Homeowners should identify and remove dead or dying elm trees — even the resistant elms, Siberian and Chinese.

Purdue extension forester Lenny Farlee introduces you to the red elm, or slippery elm. He shares about how to identify the red elm and also how to differentiate it from its relative, the American elm.

2020 a rough year for Fargo trees as city works to protect elms, ash trees from disease Fargo's battle against Dutch elm disease has kept many at-risk trees safe ...

A new, invasive insect species has been detected in Ohio for the first time, authorities said. The elm zigzag sawfly was spotted by researchers infesting elm trees in both Franklin and Delaware ...

Peter Belhumeur just wanted to know what type of tree was outside his apartment. He scanned field guides, looking for willowlike leaves with a wavy, spiked edge, but he couldn’t find the right one.

After being nearly wiped out by Dutch elm disease, the elm tree is returning. Elms are being replanted around the country. In Washington, D.C., elms are being planted along Pennsylvania Ave. in front ...

GALESBURG, Ill. (AP) _ Elms once were Galesburg's trees of choice, their majestic branches not just providing shade but forming natural canopies over its streets. Thousands of the city's elm trees ...

The fall foliage season is sweeping through New Hampshire, causing residents and leaf-peepers to appreciate anew the forests in the state. The colors of the season are a function of forest health, and ...

Elm-lined streets were once ubiquitous in America. The trees’ success throwing beautiful, shady canopies over urban environments made them one of the most popular to plant in the country. Then a ...