The potential economic impacts of emerald ash borer (Agrilus planipennis) on Ohio, U.S., communities

The emerald ash borer, Agrilus planipennis, was introduced into the U.S. in Detroit in 2002 and is now found in about half of U.S. states. To better understand the extent of the threat the emerald ash borer presents to the urban forests of Ohio, urban foresters across Ohio were surveyed. Respondents were asked about the demographics of their communities; to estimate the number of ash trees on streets, in parks, and on private property; and to estimate their average size. Based on the responses, it was estimated that the total losses predicted for Ohio’s urban forests range from $1.8 to $7.6 billion, including the landscape value of trees lost, the costs of removal, and the costs to replace the trees. The information provided can be used by communities to develop contingency plans.