Emerald Ash Borer (EAB) has been positively identified in a residential tree in Creston in Union County, making this the fifth location where the invasive beetle has been found in Iowa. EAB kills all ash tree species and is considered to be one of the most destructive tree pests ever seen in North America.

The current EAB infestation was found as a result of an arborist contacting state officials about a suspect ash tree. Investigation by the Iowa EAB Team members revealed characteristic galleries and...