Stop Emerald Ash Borer Damage with Expert Tree Treatment
The Emerald Ash Borer (EAB) is a highly destructive invasive beetle that poses a serious threat to all ash tree species in Maine (with the exception of mountain ash). First detected in Maine in 2018, EAB has since been found in multiple locations, including Bath and as far east as Bar Harbor.
EAB larvae hatch in early summer and tunnel beneath the bark, feeding on the tree’s inner layers and cutting off the flow of water and nutrients. This damage can kill even healthy ash trees within just 2–3 years. Adult beetles, which are metallic green and about half an inch long, emerge from May through August, leaving behind distinctive D-shaped exit holes in the bark.
All ash trees across the state are at risk, and preventative treatment is essential to protect them. While quarantines are in place in areas where EAB has been confirmed, these efforts only slow—not stop—the natural spread of the pest. If you have ash trees on your property, early action is key.

Effective Emerald Ash Borer Treatment Options in Maine
Emerald Ash Borer (EAB) larvae tunnel into the inner layers of ash trees, feeding on the sapwood and disrupting the tree’s ability to transport water and nutrients. Because of this, treatment requires a systemic insecticide that moves throughout the tree’s vascular system. At Hawkes Tree Service, we recommend a professional trunk injection—an effective method that can protect healthy ash trees in Maine for 2 to 3 years, depending on their size and overall condition.