In 2013, the emerald ash borer (EAB) was found in Boulder. In 2019, it was confirmed in Broomfield and in 2020, it was confirmed in Arvada. Most recently, it was confirmed in Erie in June 2021 and Thornton in June 2022. While it has not yet been detected in Denver, it could be here already. Save your tree with Ash Borer Prevention! We offer a 2 year treatment, text us today with your address and tree size at 720-763-4049.