Emergency Quarantine Issued to Protect Colorado Ash Trees--Effective 11/12/2013
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, and is responsible for the death of millions of ash trees in the midwest. Help protect Colorado's ash trees!
Colorado has many ash in the urban forest (we estimate about 15% of trees are ash). Ash trees are popular in Colorado with an estimated 98,000 in the city of Boulder alone; the Denver Metro area has an estimated 1.45 million ash trees.
How Can You Help?
EAB have a distinctive iridescent green and copper color, and a bullet-shaped body typical of buprestid beetles. Image: S. Ellis
Close up view of gallery and exit hole. Image: Gerald Wheeler
Exit holes are d-shaped. Image: Kenneth R. Law, USDA APHIS PPQ, Bugwood.org
EAB larvae cause S-shaped boring galleries. Image: Kenneth R. Law, USDA APHIS PPQ, Bugwood.org
EAB, thus far, is host specific; all 16 species of Ash are at risk. Image: Brian Sullivan