What is EAB and what does it do?

Emerald Ash Borer - EAB - is a highly destructive, non-native insect that infests and kills all North American true ash species (Fraxinus spp.) including green, white, black and blue ash, and their cultivars (including autumn purple ash, a popular white ash varietal in Colorado). The larval stage of EAB feeds under the bark of trees, cutting off the flow of water and nutrients. Infested trees gradually die over a period of approximately two to four years.

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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?