Not familiar with that one, but sad to hear about.

It wasn't until I started growing apple trees that I realized how crazy hard it is to grow some trees. They're susceptible to insects, fungus, drought, flood, animals...etc.

It's all ash trees that are at risk.

The pest is the emerald ash borer. Emerald refers to the color of the beetle. It's emerald ash_borer, not emerald_ash borer.

Yep, had four dead ash cut down last year and a whopping 22 dead ash cut down a few weeks ago. The grub form of the ash borer can be found in the firewood rounds.