WHAT Wednesday: Emerald Ash Borer
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WHAT Wednesday: Emerald Ash Borer


Howdy TPDDL and Happy What Wednesday! Today we’d like to shed some light on a pesky beetle that’s been wreaking havoc on Ash
Trees in North America. Today we are asking the question, WHAT is
the Emerald Ash Borer? The Emerald Ash Borer, or EAB for short, is
an invasive species of beetle that originated in Asia. Though some might think it’s a
beautiful creature, it is responsible for the destruction of millions of Ash trees in
North America. It was first detected in the US in Michigan in 2002, and has since spread
to 35 states, including Texas, and several provinces of Canada. It is believed to have
arrived in America carried in wood packing materials for shipping.
EAB causes the most damage during its larval stage. Adults lay their eggs in the bark cracks
of ash trees, where they hatch into larvae and begin feeding on the inner bark and phloem
of the tree. As the larvae feeds, it burrows through the cambial tissue and creates “S”
shaped tunnels in the tree. These tunnels interfere with the tree’s water and nutrient
uptake, essentially suffocating and killing it. Adult EABs exit the ash tree in spring
through “D” shaped holes. Pictures often make the adult EABs appear large, but they
are actually only about ½ an inch in length. The Emerald Ash Borer can affect all species
of ash tree. Common symptoms include yellowed or wilted foliage, “D” shaped exit holes,
excessive woodpecker damage, and shoots growing from the roots or trunk of the tree that have
unusually large leaves. EAB can be spread easily via infected fire
wood, infected nursery trees, ash wood products, and ash wood debris.
There are a few things you can do to help protect your ash trees and prevent the spread
of the Emerald Ash Borer. Be sure to buy and burn local firewood,
Inspect your trees for signs of an EAB infestation, Know the quarantines in your area
And if you plan on purchasing an ash tree, make sure you know its origin and who the
supplier is. If you discover the Emerald Ash Borer, be
sure to report it to the Texas Department of Agriculture. Thanks so much for watching, and we will see you next week! Bye!

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