How emerald ash borers kill trees?

Emerald ash borers (EAB) kill trees by larvae feeding on the inner bark, disrupting the tree's ability to transport water and nutrients. This feeding creates extensive damage to the vascular system, leading to a decline in the tree's health. As the infestation progresses, the tree becomes weakened and ultimately dies, often within a few years of being infested. Additionally, the stress from the larvae can make trees more susceptible to diseases and other pests.