Salem crews will soon begin injecting city-owned ash trees with an insecticide to protect them from the emerald ash borer. Residents with city-owned trees adjacent to their homes will soon be getting ...

The City of Vancouver is injecting ash trees with a pesticide as it looks to deal with the invasive emerald ash borer beetle, a species responsible for millions of ash tree deaths across the continent ...

Kris Dullmer of Ash Tree Solutions, right, injects an insecticide into an ash tree named Big Jim in the Catamount Community Forest to combat the emerald ash borer in Williston on Tuesday, June 25.

A mature surviving American elm tree stands above 5,200 saplings planted in Benson. Walking down into the floodplain at the Nature Conservancy’s preserve in Benson is like walking into a sea of ...

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 ...