Watch Out for the Emerald Ash Borer
The Emerald Ash Borer is an exotic Beetle that nibble on foliage as well as feed on the inner bark of the tree. The problem isn’t so much with the foliage as it is with the bark.
When the Emerald Ash Borer feeds on the inner bark, it disrupts the tree’s ability to transport water and nutrients which could in affect cause it to die. This is what make it a threat and pest.