How do you kill the roots to a wax myrtle?

To kill the roots of a wax myrtle, start by cutting the plant back to ground level. Apply a non-selective herbicide, like glyphosate, directly to the cut stumps to ensure it penetrates the roots. Alternatively, you can use boiling water or vinegar as a natural method, pouring it directly onto the roots. Be sure to follow up with monitoring for any regrowth and reapply herbicide if necessary.