What Is Emerald Ash Borer?

The Emerald Ash Borer (EAB) is an invasive beetle from Asia. It was first discovered in the United States during the summer of 2002 near Detroit, Michigan. EAB has quickly become one of the most destructive and costly forest insects in urban forest history.

EAB larvae feed on the inner bark of ash trees which disrupts the tree‘s ability to transport water and nutrients. Once an ash tree is infested, it has almost zero chance of survival. The only way to protect your trees is with treatment.

EAB populations can grow exponentially each year because the beetle has few natural predators and our ash trees have limited natural defenses. When EAB is not managed, annual ash tree deaths can quickly overwhelm the resources required to remove dead and dying trees. The good news is that healthy ash trees can be protected against EAB.
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How does EAB kill ash trees?

EAB larvae feed on the inner bark of ash trees which disrupts the tree‘s ability to transport water and nutrients. Once an ash tree is visibly infested, it has almost zero chance of survival. The only proven and reliable method of saving an ash tree is by proactive treatment.

EAB populations can grow exponentially each year because the beetle has few natural predators and ash trees have limited natural defenses. When EAB is not managed, annual ash tree deaths can quickly overwhelm the resources required to remove dead and dying trees. This results in a large number of hazardous dead trees, along with a significant financial burden to both property owners and cities. Read more on the impact of EAB to the Twin Cities.
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