What Caused Emerald Ash Borers To Appear In The U.S.?

It’s pretty amazing the amount of damage an exotic beetle can cause. Of course, we’re talking about the Emerald Ash Borer. This seemingly innocent insect was first spotted in southeastern Detroit in the summer of 2002. Ever since, the EAB has killed millions of ash trees in North America. In this post, we want to dive deeper into the EAB. Specifically, we want to answer this question: what caused the beetle to appear in the U.S. in the early 2000s?

A Summary Of The Emerald Ash Borer

The EAB is truly fascinating. Let’s start with the fact that the adult beetles nibble on ash foliage, but cause little to no damage. It’s what happens next that makes the EAB so deadly. The larvae feed on the inner bark of the tree, effectively disrupting its ability to transport water and nutrients. In a matter of time, the tree dies. So how did this insect wind up finding a home in America? Well, according to the Emerald Ash Borer Information Network, experts believe they probably arrived here on solid wood packing material carried in cargo ships or airplanes originating in its native Asia. Today, there are confirmed sightings of EAB in 31 states, as well as the Canadian provinces of Quebec and Ontario.

We already pointed out the number of trees EAB has killed in North America. But it’s also caused regulatory agencies to enforce quarantines and fines to prevent even more of an outbreak. Not surprisingly, the beetle has cost numerous industries hundreds of millions of dollars.

At Schra Tree Care in Loveland, we invite you to explore additional blog posts dedicated to the Emerald Ash Borer. Here are five must-know facts about EAB:

  1. Adult beetles are metallic green in color and grow to approximately half an inch in length.
  2. It attacks ash trees and ash trees only.
  3. Adult beetles leave a distinct D-shaped exit hole in the bark when they emerge come springtime.
  4. If you happen to notice heavy woodpecker damage on your ash tree, it could be a sign of infestation.
  5. Firewood can’t be moved in a number of areas because of the EAB quarantine.

What To Know About Our Emerald Ash Borer Treatment

EAB was confirmed this past August in Lafayette. Per the Colorado Department of Agriculture, it’s illegal to move firewood or ash tree wood out of Boulder County. The news has definitely been startling for those in Loveland. At Schra Tree Care, we offer protection against destructive pests that cause tree disease, such as EAB.

Schra is more than just another tree service. We are proud to be Northern Colorado’s preferred certified arborist. When you reach out to us, we will perform a full assessment of your trees in order to develop a sensible care and maintenance plan. Our team may suggest any combination of pest and disease control, deep root fertilization, tree trimming, and tree removal.

Have additional questions about ash tree disease? Contact Schra Tree Care today.