What effect do Emerald Ash Borers have on infected trees?

The correct answer highlights the severe impact that Emerald Ash Borers have on infected trees. These invasive pests lay their eggs on the bark of ash trees, and upon hatching, the larvae burrow into the tree and feed on the inner bark and vascular tissue. This feeding process disrupts the tree's ability to transport nutrients and water, effectively girdling the tree. This occurs when the larvae create extensive tunnels that cut off the necessary flow of sustenance, leading not only to the death of branches but ultimately to the death of the entire tree if the infestation is severe and not managed. As a result, infected trees exhibit a decline in health, vitality, and can eventually die, making the emerald ash borer a significant threat to ash tree populations.