Colorado

Emerald ash borer (EAB) was first confirmed in the state of Colorado in Boulder County in September 2013.

State-Specific EAB Information:

• Colorado State Forest Service (CSFS) – Emerald Ash Borer: a Green Menace

• Denver Parks & Recreation – Be a Smart Ash

Contacts for EAB Information or Reports:

• Colorado State Forest Service (CSFS)

  Carrie Tomlinson, CSFS Urban & Community Forestry Manager

  Email: Carrie.Tomlinson@colostate.edu

• Find your local CSFS field office

• Colorado APHIS Contact:

  Elvir Tenic, Colorado State Plant Health Director

  Email: elvir.tenic@usda.gov

  Phone: 303- 371-3355

  Fax: 303-371-4774

  Mailing Address:

  3950 N. Lewiston Street

  Suite 104

  Aurora, CO 80011-1561

List of Counties reporting EAB:

• Arapahoe

• Boulder

• Broomfield

• Jefferson

• Larimer

Quarantine:

Colorado does not have an active EAB Quarantine.

• The quarantine for Boulder County and surrounding areas was repealed on Dec. 30, 2019.

Ash Tree Alternatives:

Colorado Tree Coalition: The Colorado Chapter of the American Society of Landscape Architecture, Colorado Nursery & Greenhouse Association, Colorado Tree Coalition and Colorado State University Extension have compiled a Front Range Tree Recommendation List to help choose the right tree for specific areas.