Emerald Ash Borer

EAB Identification and Reporting | EAB Frequently Asked Questions | Options for Safe Handling of Ash Tree Wood? | EAB Quick Guide 
Summer EAB workshops in Boulder

JULY 6 2016, EAB CONFIRMED IN GUNBARREL, BOULDER COUNTY, JUNE 8 2016, EAB CONFIRMED IN LONGMONT COLORADO. QUARANTINE BOUNDARIES ARE UNCHANGED. MAY 23RD 2016 - EMERALD ASH BORER ADULTS EMERGING IN BOULDER - IT'S THE LAW; DON'T MOVE FIREWOOD OR ASH TREE WOOD OUT OF BOULDER COUNTY! HELP SLOW THE SPREAD OF EMERALD ASH BORER.

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Watch your Ash!

Boulder County EAB Site

Watch Your Ash is a multimedia project from graduate students at the University of Colorado providing an excellent overview of EAB detection and management in Boulder.

 

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). 

Approximately 15% of the trees that make up Colorado's urban forest are ash. There are an estimated 98,000 in the city of Boulder alone. The Denver Metro area has an estimated 1.45 million ash trees. EAB is responsible for the death of millions of ash trees in the United States.

Help protect Colorado's ash trees! Don't move firewood, and consider chemical treatments to protect high-value ash trees within or near the EAB Quarantine area. 

The Colorado Emerald Ash Borer Response Team