New Jersey Department of Agriculture officials reports the emerald ash borer (EAB), an invasive beetle that attacks and kills ash trees, is active in 14 towns in six counties.

A trapping program in 82 towns over the summer and reporting from homeowners has resulted in the discovery to date of the beetle in Hillsdale, Bergen County; Edgewater Park and Westampton, Burlington County;  Ewing, Hamilton Township, Hopewell, Princeton, West Windsor., Mercer County; Monroe and South Brunswick, Middlesex County; Bridgewater, Franklin Township and Hillsborough, Somerset County; and Allentown, Monmouth County.

“Just as emerald ash borer has swiftly spread through other states in the nation, it has now moved to New Jersey and we must prepare for the impact of this highly destructive invasive pest, which could lead to the death of ash trees,” said New Jersey Secretary of Agriculture Douglas H. Fisher.  “We ask that towns and counties act now to put plans in place to respond to the beetle.”

In an effort to protect the state’s ash trees, the Department of Agriculture initiated the field release this fall of biocontrol parasitoids for emerald ash borer in four locations in Bridgewater, Hillsborough, Franklin and Ewing Townships.  Releases of almost 9,000 larval and 1,600 egg EAB parasitoids were made in wooded ash sites containing low levels of EAB in September in an effort to help suppress building EAB populations.  The beneficial insects were supplied by the U.S. Department of Agriculture’s EAB Biocontrol Laboratory in Brighton, Michigan.

Municipal officials and residents of those towns and counties are encouraged to visit the New Jersey Emerald Ash Borer website where they can find resources on how to protect their ash trees or what to do with dead or dying trees.

Emerald ash borer was first discovered in New Jersey in May 2014 by a private citizen in Bridgewater.  Now present in 25 U.S. states and two Canadian provinces, EAB was first discovered in Michigan in 2002 and has since killed tens of millions of trees.

The New Jersey Emerald Ash Borer website has many resources for municipal officials, woodland owners and residents.  The site explains the signs of the beetle, how to identify ash trees, how to report a possible infestation, and what to do with dead or removed trees.  For towns, there is an Emerald Ash Borer Management Plan template and a tree removal cost calculator.  For homeowners, there is a risk map and treatment options.  For woodland owners, there is a list of companies that will accept ash.

New Jersey is part of a federal quarantine to prevent the spread of the beetle, which prohibits movement of ash trees outside of the quarantine zone.  The Department also recommends not moving firewood.  Firewood is a vehicle for movement of tree-killing forest pests including EAB.  Use locally-sourced firewood when burning it at home and when travelling, burn firewood where you buy it.  Make sure to burn all wood purchased.

Report signs of the beetle to the Department of Agriculture at 609-406-6939.