D Shaped Exit holes
These d shaped exit holes are a positive sign of the Emerald Ash Borer. There will likely be woodpecker activity that creates a blonding appearance on the Ash bark. Generally, the infestation starts higher in the trees.
For more information about Emerald Ash Borer identification and it's presences in Vermont, visit Vermont Invasives.
What to do about it?
No, all Ash trees should not be cut down. No, all ash trees should not be injected with pesticides. In cases of Ash trees close to the home, it's best to start thinking about what a good replacement tree will be. While chemical treatments do offer some protection, they are also highly toxic and can have drastic affects to pollinator populations. Our bees are very important.
Ash trees that have died from Ash Borer are extremely brittle and removal requires caution and, at times, specific equipment. Contact us for a consultation and we can discuss a remove and replace approach.