The devastation of elm trees in Ireland due to Dutch elm disease is one of the most striking but overlooked changes in our ...

It's in the elm zigzag sawfly's caterpillar-like larval stage that you're likely to see it - and the distinctive damage it ...

Walking down into the floodplain at the Nature Conservancy’s preserve in Benson is like walking into a sea of American elm saplings. The trees criss-cross about 30 acres on the valley floor in tight ...

If you see green paint on a tree, it won't be by accident. It was painted on for a reason; why it was will largely depend on ...

Sadly, this summer, some residents in Michigan will have to deal with an invasive species they've never seen before. The elm zigzag sawfly is continuing its spread across the eastern and midwestern U.

Seeing blue dots, red Xs, orange circles and purple bands on trees and wondering what they mean? Here's what we found out about those painted trees.

The insect was first identified in St. Clair County by federal inspectors after an arborist reported the finding through an online tool.

Centuries-old mulberry trees in Essex are expanding into new territory as part of a heritage project by the Conservation ...

A new invasive species has been detected in Michigan's St. Clair County.

As America approaches its 250th anniversary, the companies will pursue the development of scalable seedling technologies to support the first-ever restoration of a native tree species from functional ...

As spring gives way to summer, you may notice dead, leafless trees standing out in Missouri's green landscape. It's a growing trend among several tree species in the state, and experts say there are ...

MONTICELLO — Along city streets this spring, Monticello High School agriculture students fanned out with shovels, wheelbarrows and watering bags, carefully lowering young trees into freshly dug holes.