Emerald Ash Borer Overview

This EAB Management and Response Plan is intended to provide best management practices for Town of Berthoud Staff as well as residents within the Town to reference as needed. Along with providing information regarding identification and management options, this document is also intended to educate the public about EAB. This integrated plan is ongoing and subject to change as new infestations are discovered, new practices are developed, and new literature/resources are published. As Town Staff and the Tree Advisory Committee develop greater understandings of current issues and future proposals, alterations to this document will be updated and/or revised, ultimately modifying and improving the overall health, diversity, and longevity of Berthoud's urban forest.

• Emerald Ash Borer Management Plan (PDF)

The Town treats all eligible ash trees, within the public rights of way, throughout Berthoud Town limits. ROW ash trees will be treated on a two-year rotation. 

Eligible ash trees will be determined at the Town Forester's discretion based on the following criteria:

• Is an ash within the genus Fraxinus
• Is located within the public-rights-or-way ("tree lawn") and in an appropriate planting location
• Possess a diameter at breast height (DBH) of 10-inches or greater
• Is in good condition (no more than 40% canopy die-back) and possess adequate structure and development
• Hasn't been previously treated (via truck injection) within the last two year 

This map shows the two rotations of the town's Ash Treatment Program. The red and blue dots indicate White and Green Ash trees along the public Right of Way.