EAB was discovered in the city in the fall of 2019 during a routine tree trimming project. An analysis of the infestation showed that EAB was likely present for multiple years prior to its detection, which is consistent with the insect’s path of destruction. Symptoms are slow to appear, and once EAB is actually found, it has likely been present for 3 to 5 years. It is estimated that more than 30% of trees located on city property, rights-of-way, and boulevard areas are ash trees (not including the forested area of Barker’s Alps Park). Once EAB is found in an area, the mortality rate of ash trees increases exponentially. After discovery, the mortality rate of ash trees in 4 to 6 years is 30% and increases to 90% in 8 to 10 years.