iMapInvasives
The iMapInvasives Network, a partnership between various organizations in different states including, in this region, Maine and New York, posts distribution maps of invasive species, based on observations reported by professional scientists, land managers, and the public. To see localities of known EAB occurrences within one of these states, go to https://www.imapinvasives.org/login.
State-level institutions primarily responsible for EAB outreach and reporting in New York-New England
Connecticut
For more information on EAB in CT, see the Connecticut Department of Energy and Environmental Protection’s EAB webpage: https://portal.ct.gov/DEEP/Forestry/Forest-Protection/Emerald-Ash-Borer-EAB. First detected in New Haven County in 2012, EAB has since spread to every county in Connecticut.
Maine
For information on how to report EAB, see the Maine Department of Agriculture, Conservation and Forestry’s EAB webpage: https://www.maine.gov/dacf/mfs/forest_health/invasive_threats/eab/index.shtml. EAB was first detected in Maine in 2018, in Aroostook County in the north and York County in the south. It subsequently spread to other parts of Maine, but as of fall 2026, it had not been detected in most of the state.
Massachusetts
For information on how to report EAB, see the Massachusetts Introduced Pests Outreach Project’s EAB webpage at https://massnrc.org/pests/pestFAQsheets/emeraldashborer.html. First detected in Berkshire County in 2012, EAB has since spread throughout Massachusetts and is now present in all but two island counties.
New Hampshire
For EAB reporting instructions and other information, see the New Hampshire Bugs EAB webpage: https://www.nhbugs.org/damaging-insects-diseases/emerald-ash-borer. EAB was first detected in New Hampshire in Merrimack County in 2013. It has since spread across most of the state, although it has not yet been documented in many northern towns as of fall 2026.
New York
For information on reporting EAB, see the New York State Department of Environmental Conservation’s EAB webpage: http://www.dec.ny.gov/animals/7253.html. EAB was first detected in Cattaraugus County in western New York in 2009. Satellite infestations were reported in the Finger Lakes, Hudson Valley, and Capital District regions the following year. By fall 2026, EAB still had not been documented in some North Country areas, particularly in Hamilton and Lewis counties. Additional information is available on the New York Invasive Species Research Institute’s EAB webpage: https://nyis.info/species/emerald-ash-borer/.
Rhode Island
You can report EAB occurrences through the Rhode Island Emerald Ash Borer Resource Center at https://rhodeislandeab.wordpress.com/about/. EAB was first detected in Rhode Island in Providence and Washington counties in 2018 and has since spread throughout the state.
Vermont
EAB should be reported through the Vermont Invasives reporting webpage: https://vtinvasives.org/reporting-emerald-ash-borer. EAB was first detected in Vermont in 2018 in Grand Isle County along the western border, Orange and Caledonia counties along the eastern border, and Bennington County along the southern border, as well as around Montpelier in Washington County. By fall 2026, EAB had spread across most of the state but had not been documented in northeastern Essex County.
Various EAB topics
The Emerald Ash Borer Information Network provides links to resources for a wide range of EAB topics.