Connecticut

Emerald ash borer (EAB) was first confirmed in the state of Connecticut in New Haven County on July 16, 2012 (Official 2012 Press Release).

State-Specific EAB Information:

• Connecticut Department of Energy & Environmental Protection

  • Emerald Ash Borer in Connecticut

  • Managing Emerald Ash Borer in Connecticut

• What you should do (PDF)

Contacts for EAB Information or Reports:

• Connecticut Agricultural Experiment Station

  • Email photos to CAES.StateEntomologist@ct.gov

  • Or call 203-974-8474

• Connecticut APHIS Contact:

  • Erica Willey, Connecticut State Plant Health Director

    Email: erica.willey@usda.gov

    Phone: 203-741-5656

    Fax: 203-741-5660

    Mailing Address:

    97 Barnes Rd.

    Unit 200

    Wallingford, CT 06492

List of Counties reporting EAB:

EAB has been detected in all eight counties of Connecticut.

Quarantine:

Connecticut has an active quarantine to prevent the spread of EAB.

• The quarantine restricts the movement of ash logs, hardwood firewood, yard waste, and ash nursery stock out of the state. Connecticut also bans the importation of firewood from New York or Massachusetts unless it is properly certified as not originating from an infested area.

Ash Tree Alternatives:

• Connecticut is a hardiness zone 6

• Ash Tree Alternatives By Zone

This page was updated on June 5, 2025.