City of Bemidji

First City on the Mississippi!

Emerald Ash Borer – Found in Minnesota

What is EAB?

EAB is an insect that attacks and kills ash trees. The adults are small, iridescent green beetles that live outside of trees during the summer months. The larvae are grub or worm-like and live underneath the bark of ash trees. Trees are killed by the tunneling of the larvae under the tree's bark.

Where is EAB?

EAB is native to eastern Asia but was discovered in Detroit, Michigan and Windsor, Ontario in 2002. Indications are it may have been introduced to this area as early 1990. EAB has been spread in ash firewood, nursery stock and possibly other ash materials to a number of new areas.

Why should I care about EAB?

All ash trees are susceptible to EAB and millions of ash trees have been killed in infested areas already. Minnesota has one of the highest volumes of ash on forestland in the U.S. with an estimated 867 million forestland ash trees and ash is a prominent component of our urban forests as well. The potential economic and environmental impacts of losing these trees is substantial. The cost of removing and replacing a single tree can range from hundreds to thousands of dollars – how many ash trees are in your yard?

Links for More Information

Minnesota Department of Agriculture 

Identifying an Ash Tree

Identify the Emerald Ash Borer

Firewood Information 

Do I have EAB?