Officials in the Garden State have confirmed that emerald ash borer (EAB) is now active in 14 towns in six counties, including Bergen, Burlington, Mercer, Middlesex, Somerset and Monmouth counties. The pest was first discovered in New Jersey in May 2014 in Bridgewater (Somerset County). The latest sitings are the result of a state trapping program launched this past summer in 82 towns, as well as homeowner reports.

Protection and prevention efforts have begun: This fall, the state’s Department of Agriculture initiated a field release of biocontrol parasitoids in four locations in Bridgewater, Hillsborough, Franklin and Ewing Townships. Nearly 9,000 larval and 1,600 egg EAB parasitoids were released in wooded sites that contained low levels of EAB in an effort to suppress increasing populations. The beneficials were supplied by the USDA’s EAB Biocontrol Laboratory in Brighton, Michigan.

Meanwhile, several states to the west … EAB has been identified in Washington County, Minnesota. This is the eleventh county in the state to be included in quarantine for EAB.

Cover Photo courtesy of New Jersey Department of Agriculture