The Emerald Ash Borer has a very distinctive exit hole. There is no other insect in North America that produces a perfect &quot;D&quot; shaped exit hole very near 1/8 inch in diameter.
At the base of the trunk leaves are forming. This is called epicormic growth, and is clear evidence that this ash tree is under stress.
Notice the damage done to the tree by the larvae of the Emerald Ash Borer. Eventually the larvae girdle the tree inside the bark and cut off the flow of nutrients. Exit holes may also include other insects and therefore not all holes may be D shaped and 1/8th an inch in diameter.
The trunk injection is the most effective method according to many University studies. That's why we use it. The formulation that Back Tree Service has proven most effective is ArborJet's TREE-äge formulation, with the active ingredient Emamectin Benzoate. This formulation is registered in Indiana, Ohio and Kentucky, and of course covers the Greater Cincinnati tree service area. We have learned through experience that when the trunk injection system is combined with Pneumatic Vertical Mulching and fertilization, our success rate in saving ash trees in the Greater Cincinnati tree service area is nearly 100%!
The Pneumatic Vertical Mulching tool promotes tree health by enabling aeration of the soil, thus stimulating root development. This is called soil remediation. When done in conjunction with trunk injection, it aids in the even distribution of the formulation. Both Pneumatic Vertical Mulching and trunk injection are recommended every two to three years.
Results: In this example, the Ash tree on the left has been treated with trunk injection of the TREE-äge formulation, while the Ash tree on the right, and toward the back, remained untreated and lost the fight against the Emerald Ash Borer.
You can protect your trees from the Emerald Ash Borer
You Can Protect Your Ash Trees From The Emerald Ash Borer In Cincinnati
These trees were treated and look really beautiful
Do I Have an Ash Tree? Notice the compound leaves and the leaflets opposite each other
How to Identify the Emerald Ash Borer No other insect in North America produces a perfect "D" shaped exit hole very near 1/8 inch in diameter.
In this next picture an emerging Emerald Ash Borer can be seen. Notice once again the unique "D shaped hole. How to Identify the Emerald Ash Borer
How to Identify the Emerald Ash Borer Trees are forming at the base of the trunk demonstrating that the tree is under stress
Eventually the larvae girdle the tree inside the bark and cut off the flow of nutrients How to Identify the Emerald Ash Borer
University studies show that injecting an ash tree with Tree- äge has been proven to provide 100% protection for two years Injecting With Tree- äge
Both Pneumatic Vertical Mulching and trunk injection are recommended every two to three years for overall tree health Pneumatic Vertical Mulching