DFC’s Strategy for Emerald Ash Borer (EAB)
Emerald Ash Borer (EAB) is responsible for the death of millions of ash trees in the U.S. It first appeared in Detroit in 2002, resulting in the death of the entire ash population in the city. In the Fall of 2013, EAB was discovered in Boulder and has since spread to the northern boundaries of Broomfield. The invasive beetle is a slow moving pest, but devastating to ash trees nonetheless. Once a tree has been infected with the pest, death is certain.
The GSA is taking proactive measures with the realization that EAB reaching the DFC is inevitable. We are working with the Davey Tree Company, the US Forest Service, and the EAB community to consider our options in dealing with EAB. Once each tree is evaluated at the DFC, we will consider whether it is best to commit to a long term management strategy to hopefully save the tree or if it is best to replace the tree with a different species. If you notice some of the ash trees being removed at the DFC, it is because it has been determined that these particular ash trees are unhealthy and it would be best for them to be removed now and replaced with a new tree. Please be aware that some trees may not be replaced in the same area if the site conditions are deemed to be poor for planting.