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Emerald Ash Borer treatments

Preventable damage caused by EAB

-Protect your investment today to help        prevent costly removal services.

​Does Drilling Hurt My Tree?

No. We all know when humans need surgery, the surgical process leads to a cure or a healing, and benefits far outweigh the injury. Arborjet's Arborplug Technology minimizes the impact sealing the site from insects and inhibiting decay. The small arborplug also provides a shoulder for new xylem and bark to grow over usually in 9-12 months. For hundreds of years, there  have been thousands of trees that are drilled with much larger holes  for maple sugaring and others used routinely in nurseries for transporting newly sold trees.

Why Do I Need to Drill?

Formulations need to be injected into the tree's xylem (white tissue). The Xylem transports the formulation throughout the tree. Don't be fooled by cambium injections, since the cambium does not transport formulations. The cambium is also a sensitive part of the tree which is responsible for new growth of bark and xylem tissue.

                                                          How does trunk injection work?

- A small plug, called the Arborplug®, is inserted into a drilled hole in the tree. A needle is inserted through the
Arborplug and the treatment is injected.

- A precise dose of formulation is injected directly inside the transport system the tree. Formulations are quickly distributed through the trunk, branches and leaf tissue.

- The Arborplug keeps the injected formulation inside the tree and it stays inside the tree with no adverse reactions.
                                           The tree grows right over the Arborplug.

​TREE-äge is injected using the Arborjet 
Trunk Injection system. One TREE-äge application provides your ash trees with
two years of control against Emerald Ash Borer. TREE-äge may only be applied by licensed pesticide applicators. The injections typically take 10-15 minutes or less. 

More facts about our trunk injection system

Trunk injection of trees is a way to efficiently treat many different insect and disease problems, as well as nutrient deficiencies, in a manner that limits environmental exposure. This method also uses the least amount of pesticide as compared to other conventional treatment methods. Trunk injection involves using a special injection tool which places and seals the insect control directly into the trunk where it is quickly taken up by the vascular system and distributed throughout the tree. For Emerald Ash Borer pest control: Through trunk injection, small doses of insect control are carefully measured and injected directly into the tree’s transport tissues, enabling distribution within the tree, but limiting the impact to the environment. The best time to treat Ash trees in the upper third of the country is from May through October when trees are most active, and water or nutrients are actively flowing in the tree. The larval (damaging) stage of EAB does its worst from August through October. Injections are made in the bottom 18 inches of the tree, at intervals of around 6 inches apart. The depth for the injection is between 5/8” and 1 5/8” into the tree. A 10 inch diameter tree would receive approximately a 1.5 ounce injection for two years of protection. Trunk injection formulations can take hours to weeks to move throughout the tree. Most often trees are protected within a few days. Trunk injection is widely considered to be the most effective and consistent method available for preventing EAB from attacking a tree, or killing EAB in an infested tree. It can stop damage even if the tree is already under attack without harming the surrounding environment. Researchers at Michigan State, Ohio State, Purdue, the University of Illinois, and University of Wisconsin have concluded that Arborjet’s trunk-injected systemic insecticides are the most effective treatment options, providing very effective control of EAB for two years, with a single application, even under heavy infestation pressure. It also provided a higher level of control than other products in side-by-side studies.* The largest Midwestern cities, including Chicago and Milwaukee, chose and are currently using Arborjet’s trunk injection with its two years of protection, for over 115,000 boulevard trees, following careful evaluation of the alternatives.


Unlike spraying or soil applications, Arborjet's system injects directly into the tree, limiting any impact to your family, the applicator, and the environment around you.