Colorado Department of Agriculture website
Emerald Ash Borer (EAB) was found in Boulder, CO, in September 2013. As a non-native insect, EAB lacks predators to keep it in check. EAB only attacks ash trees in the genus Fraxinus (so mountain ash are not susceptible). Visit the Colorado Department of Agriculture website for the most up to date information regarding the Emerald Ash Borer in Colorado. Click here for more information.
Additional Emerald Ash Borer Resources
- Ash Tree Management Zones
- A Threat to Colorado’s Urban Forests
- Control Options
- Does My Tree Have Emerald Ash Borer (EAB)?
- Emerald Ash Borer Survey
- FAQs
- First Responder Manual
- Identification of Insects and Damage of Similar Appearance
- Lilac Ash Borer Response
- Talking Points from Colorado Department of Ag
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