Emerald Ash Borer
This invasive insect from Asia targets ash trees. First detected in the United States in 2002, the Emerald Ash Borer (EAB) is now found in fourteen states centered on the Great Lakes basin. Approximately 130,000 square miles are considered infested, representing 7 percent of the native range of North American ash species. The total value of the annual harvest of ash timber is estimated at $150 million. Many species of ash are riparian, filling important niches in the ecosystem, and ash has been widely planted in urban landscapes. In FY 2010, APHIS anticipates spending $37.2 million to protect the nation’s remaining ash resource from emerald ash borer.