Emerald Ash Borer (EAB), Agrilus planipennis
The emerald ash borer (EAB), Agrilus planipennis, is one of the most serious invasive species threatening our ash resources and forests. All species of (Fraxinus) ash trees, but not (Sorbus) mountain ash, that grow in Maine are susceptible to injury and death by the emerald ash borer.
EAB was first found in Aroostook County (Madawaska, Frenchville, and Grand Isle), and York County (Acton, Berwick, and Lebanon), ME in 2018. It was detected in Cumberland County (Portland) in September 2019.
Maps, Regulations & Quarantine Information
- EAB Emergency Order DACF/Bureau of Forestry/Forest Health & Monitoring
- EAB Quarantine Rules (DOC)
- EAB Quarantine Outside Maine Map as of 4/27/2021 (PDF)
- Entire states of Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, West Virginia, Wisconsin and any additional areas infested with emerald ash borer as determined by the state agency with regulatory authority, United States Department of Agriculture, Animal & Plant Health Inspection Service or the United States Forest Service, including, but not limited to all areas shown on this map, and
- All Canadian provinces, counties, regional districts or other civil divisions that are infested with emerald ash borer as determined by provincial authorities or the Canadian Food Inspection Agency (CFIA). Including all areas listed on the most current version of the Emerald Ash Borer Regulated Areas of Canada map published by CFIA.
- EAB Quarantine Within Maine Map (PDF) - 3/31/2023
- All of Cumberland and York Counties, and parts of Aroostook and Oxford Counties.
- An Emergency Order is in place for the following areas: all of Androscoggin, Kennebec, Knox, Lincoln, Sagadahoc and Waldo Counties and parts of Aroostook, Franklin, Oxford, Penobscot, Piscataquis and Somerset Counties.
- EAB Quarantine - Southern Maine Map (PDF) - 3/31/2023
- All of Cumberland and York Counties and the towns of Brownfield, Denmark, Fryeburg, Hiram and Porter.
- An Emergency Order is in place for the areas: all of Androscoggin, Kennebec, Knox, Lincoln, Sagadahoc and Waldo Counties and parts of Franklin, Oxford, Penobscot, Piscataquis and Somerset Counties.
- EAB Quarantine - Northern Maine Map (PDF) - 3/31/2022
- The northeast portion of Aroostook County including Allagash, Caswell, Connor Twp, Cross Lake Twp (T17 R5 WELS), Cyr Plt, Eagle Lake, Fort Kent, Frenchville, Grand Isle, Hamlin, Madawaska, Madawaska Lake Twp (T16 R4 WELS), New Canada, New Sweden, Saint Agatha, Saint Francis, Saint John Plantation, Sinclair Twp (T17 R4 WELS), Stockholm, T16 R5 WELS, T16 R6 WELS, Van Buren Cove Township (T17 R3 WELS), Van Buren and Wallagrass.
- An Emergency Order is in place for the following townships:T16 R8 WELS and T16 R9 WELS
- EAB Quarantine FAQ (PDF)
- Guidance for Solid Waste Handlers (PDF) Dealing with potentially infested ash in and outside quarantine areas.
Surveillance, Outreach, Involvement
- Emerald Ash Borer 2020 Update - Colleen Teerling, DACF, MFS (YouTube)
- How to Look for EAB - Colleen Teerling, DACF, MFS (PDF)
- Emerald Ash Borer: Background, Management & Potential Impacts - Nate Siegert, USFS (PDF)
- Emerald Ash Borer: Management Options for Municipalities - Nate Siegert, USFS (PDF)
- EAB Resources for Municipalities - Jan Santerre, DACF, MFS (PDF)
- Emerald Ash Borer: Emergency Orders, Quarantines, and Rulemaking - Gary Fish, DACF, APH (PDF)
- Municipal Meeting Agenda (PDF | 191 KB)
- Recording of Meeting (YouTube)
- EAB: 2020 Purple Prism Trap Locations (PDF | 1.47 MB)
- Emerald Ash Borer Detections in Southern Maine 2018-2020 (PDF | 5.12 MB)
- Emerald Ash Borer Biocontrol in Maine (PDF | 544 KB)
- Emerald Ash Borer Biocontrol Info For Potential Cooperators (PDF | 206 KB)