Arbor-Jet Tree Injection

Trunk Injection

Trunk injection is the most effective alternative to spraying or soil applied pesticides for tree insect or pest control. Arborjet’s trunk injection equipment injects formulations directly into the trunk where it is quickly taken up by the vascular system and distributed throughout the tree. With over 10 years of research and development, our trunk injection systems and formulations are proven to give the best results when protecting trees from pests.

Simple & Quick

The Arborjet drill-plug-inject method and application is quick.


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.

Cost Effective

Equipment & formulation costs are much less costly than they use to be. Service providers can offer a program that is valuable to the homeowner and still very profitable for them.

View the Trunk Injection fact sheet.

Did You Know

Did you know that some of the biggest cities in the country use the Arborjet trunk injection system to treat their most valuable trees. Cities including Chicago and Milwaukee are using Arborjet’s trunk injection, with its two years of protection, to keep over 115,000 of their boulevard trees healthy.

ACE-jet Control of Winter Moth on Linden

TREE-äge and ACE-jet treatments were compared for effective control against Winter Moth. Results showed that ACE-jet provided effective control in the first season following application. Download

Eco-Mite Plus® Control of Potato Leaf Hopper

Spider Mite Egg Counts Pre- & Post-Treatment of Eco-Mite Plus®

AzaSol™ Control of Rugose Spiraling Whitefly in Coconut

Mean sooty mold in the AzaSol™ treatments were lower and significantly different from the untreated checks.

New Branch Growth after Hemlock Woolly Adelgid Treatment

Hemlock Woolly Adelgid Density

In trials, AzaSol showed excellent control of Hemlock Woolly Adelgid.

Fruit Borer Incidence (%) Avg. Over 120 Days

Results of a field experiment showed that AzaSol sprayed at 1.75 tsp and 3.5 tsp/gallon were superior in reducing the shoot and fruit borer incidence and enhancing the fruit yield. Download

AzaSol™ Palm Skeletonizer: Washingtona ‘robusta-Gaylord Palms Resort

AzaSol™ Treatment for Spotted Wing Drosophila

AzaSol™ Control of Hornworm on Tomato

In trials, AzaSol™ showed excellent control of Hornworm on tomatoes.

PHOSPHO-jet Suppression of Sudden Oak Death Lesions

Trunk injection treatments of phosphorous acid (PHOSPHO-jet) provided excellent control in reducing lesions formed by Sudden Oak Death. Download

IMA-jet control of Emerald Ash Borer

Arborjet’s IMA-jet provided excellent control of Emerald Ash Borer compared to other imidacloprid treatments.

TREE-äge® Stem Gall Treatment

TREE-äge® and IMA-jet were effective in improving tree health of Chinese Banyan at Punchbowl Cemetery 10, 17 and 26 Months After Treatment

Pine Seed Orchard Coneworm Study

TREE-äge treatments consistently reduced cone damage and mortality from coneworms 70-95% in slash pine and loblolly pine orchards for two years compared to untreated trees. It was effective against pine seed bugs during the first year after injection, reducing damage by 3 – 37% compared to untreated trees.