How many trees can 1 qt treat

Please refer to the label located in the files tab.

This is what I found on the label that can help you decide roughly how much you will need.

ArborMectin is designed for use with tree injection devices that meet the label and dose requirements for the control of listed pests of trees. Follow manufacturer’s directions for equipment use. Dosages are based on the Diameter (in inches) of the tree at Breast Height (“DBH”). DBH is the outside bark diameter of the trunk at 4.5 feet (1.37m) above the ground on the uphill side of the tree. For the purposes of determining breast height, the ground includes the duff layer that may be present, but does not include unincorporated woody debris that may rise above the ground line. The diameter is determined by measuring the circumference of the tree at DBH, and dividing circumference (in inches) by three (3). To determine DBH for multi-stemmed woody ornamentals, measure the DBH for each stem or branch and add together for the total DBH per tree.

From there please refer to the Use rates on page 6 and 7.

For Example a 10-12" Diameter tree at Breast Height with a medium application rate of 55 mL of product.