Emerald Ash Borer

Environmental Threats

Emerald Ash Borer

Emerald Ash Borer (EAB) is an exotic, invasive insect that is destroying ash trees throughout Indiana. EAB has been identified in 35 states and the District of Columbia, mostly in the east and Midwest parts of the country. It was first found in Indiana in 2004 and has since then spread all over the state. Adult EABs are most active in the summer and early fall. It is the larvae, however, that do the greatest damage. They burrow through the ash tree’s bark, creating tunnels that stifle the tree’s systematic ability to obtain food and water.

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