Herbicides with the active ingredient Triclopyr-amine (water soluble), applied at the labeled rate, are generally not known to cause flashback. However, you as the applicator are required to read the label and follow all herbicide directions as the University of Illinois is not responsible for the misapplication and misuse of pesticides.
Commonly sold as Garlon 3A, Triclopyr 3A, Element 3A, etc.