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Emerald Ash Borer Damage tree fell on house deck pool

Dead Ash Trees Are NOT Safe!

All dead trees become hazardous over time.  But, that’s not the case with Ash trees killed by Emerald Ash Borers (EAB).  When EAB destroys an Ash tree, the internal damage is so severe that the tree very quickly becomes dangerous.

In this video, Mike Chenail, Giroud ISA Certified Arborist explains how EAB make Ash trees unsafe.

“There are two realities,” explains Mike.  “The first problem has to do with the way EAB kill the tree and second is the tree’s own basic structure./”

1.    Moisture Loss: Emerald Ash Borers cut off the flow of water and nutrients through the tree and create thousands of exit wounds.  Both conspire to dry out the tree and make it dry and brittle.
2.    Structure: The same straight, tight grain that makes Ash great for baseball bats and splitting firewood is also why its limbs and leaders easily split apart.”

A dead Ash tree is not a simple tree removal.  The brittle tree can break apart in unexpected ways and cause significant damage.

Your Giroud Arborist will evaluate the tree’s condition and determine if a tree climber can safely work in the tree or if a crane and/or bucket truck is required.  The longer the dead tree is left in the ground, the drier and more dangerous it will become making tree removal even more complicated and expensive.

“There is hope for Ash trees that are still in good health,” adds Mike.  /”Research has proven that biannual trunk injections of TREE-age, Emamectin benzoate, protect Ash against Emerald Ash Borer.  The tree must have at least two-thirds of its crown and be healthy enough to absorb the treatment.”

The following steps help to ensure Ash trees are properly evaluated and treated or removed:
–    Early Detection: Have your Giroud ISA Certified Arborist evaluate the Ash trees and recommend the best action.
–    Treatment: If the Ash trees are healthy enough to save, a systemic trunk injection every two years protects Ash from Emerald Ash Borers.
–    Regular Pruning: Remove deadwood and prune to promote healthy growth in combination with treatment.
–    Tree Removal: When unprotected Ash trees become unsafe or die, prompt removal is required.

Don’t know if you have an Ash tree?  Check out this free mobile app from the Colorado State Forest Service and Colorado State University Extension.  It will ask you a few easy questions to decide if you have an Ash tree on your property.

Author: Cindy Giroud

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