EAB Identification and Reporting
Use the Emerald Ash Borer Identification Poster or the information below to determine if you have identified EAB or EAB tree damage.
Emerald Ash Borer
Emerald Ash Borer is commonly mistaken for:
Six Spotted Tiger Beetle
Two Lined Chestnut Borer
If the insect sighting was not Emerald Ash Borer, there is no need to file a report. Find additional information about Colorado insects from the CSU extension.
Ash Tree Damage
Reporting suspicious ash tree damage? Look for these signs:
Tiny, D-shaped exit hole
Serpentine larval tunnels
Upper 1/3 die-back and resprouting
Emerald Ash Borer (EAB) Report Form