Emerald Ash Borer In Fort Collins

Non-native insect responsible for millions of ash tree deaths


Emerald Ash Borer (EAB), a non-native insect that attacks ash trees, was first found in Colorado over five years ago. Since then, areas like Boulder and Lafayette have had confirmed cases; in May 2020, Fort Collins City Forestry confirmed cases in Fort Collins.

Notoriously difficult to identify except by professional arborists, symptoms to monitor include:

  • Sparse leaves and/or branches in the upper part of your tree
  • Vertical splits in your tree’s bark showing S-shaped galleries beneath
  • Increased woodpecker activity
  • Miniature leaves at tree tips late in the summer



Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org

Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org

David Cappaert, Bugwood.org

Links to More Information on Emerald Ash Borer


Emerald Ash Borer Detected in North Fort Collins
City of Fort Collins, Forestry


FAQ: The emerald ash borer is in Fort Collins. Here are your options of dealing with it.
Fort Collins Coloradoan, May 15, 2020


Fort Collins to Uproot Thousands of Ash Trees
as Invasive Beetle Creeps Closer

Fort Collins Coloradoan,  June 21, 2018







Emerald Ash Borer Tree Inspection

If you suspect Emerald Ash Borers, have your ash trees inspected by certified experts at Jordan’s Tree. Our team will help you prevent outbreaks. Please contact us immediately if you feel any of your ash trees may be impacted.

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