Since 2002, emerald ash borers have killed anywhere from 80% to 99% of mature ash in Southeast Michigan and Northeast Ohio.

Also, routinely inspect your trees for signs like thinning crowns, bark splits ... especially for true ash species that are ...

Ash trees are distinctive for their mirrored ... an S-shaped tunneling pattern on the bark, or white spine-resembling larvae. It’s less-common to actually see a green adult emerald ash borer ...

Some landscaping trees put on a show year-round. The Korean mountain ash (Sorbus alnifolia ... relative's smooth gray bark stands out next to the jagged icicles and white snow drifts of winter ...