In this tree identification episode, Purdue Extension forester Lenny Farlee will talk about how American elm leaves have jagged edges with a large tooth and then smaller teeth like edges on top of it.

A new invasive insect has been found infesting Ohio elm trees. The elm zigzag sawfly is a caterpillar-like insect native to Asia, according to the Ohio Department of Natural Resources. It was first ...

DALLAS — The winter freeze this February was a tough test for trees across North Texas, and we're still seeing the impact months later. If your trees appear to be dying now, there's a good chance it ...

BECKET — There’s a tiny insect new to Berkshire County that is munching on leaves, giving some trees a ghostly, wintry appearance even in the midst of summer — entirely defoliating elms. The elm ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Trees are among the earth's most useful and beautiful products of nature.

An emerging invasive insect species has been causing problems with elm trees across the Midwest. According to the Indiana Department of Natural Resources, the invasive elm zigzag sawfly is active from ...