What does EAB look like?

Insent next to a coinEAB adults are dark metallic green in color, with a coppery red or purple abdomen under the wings. The insect is approximately 1/2-inch long and 1/8-inch wide. Adults may be present from late May to September, but are most commonly active and visible in June and July, when they lay eggs on the bark of ash trees.

EAB larvae are creamy white in color and are found under the bark, so are not as obvious, but their expanding S-shaped galleries (tunnels) can be located if the bark is removed. Larvae can be located using proper branch peeling techniques.

Note that other metallic-green beetles and larval insect stages can be confused with EAB. Talk to a professional forester, arborist or other tree care professional if unsure about the possible presence of EAB in or on an ash trees.

Show All Answers

1. What is EAB and what does it do?
2. Why should I care about EAB?
3. What does EAB look like?
4. How does EAB spread?
5. What is being done in Colorado to mitigate the effects of EAB?
6. What is being done in the Town of Erie to manage EAB?
7. What does treatment for EAB entail?
8. How do I know if my ash tree is a candidate for treatment?
9. How do I know if my ash tree should be removed?
10. How do I know if I have an ash tree on my property?