DA would you turn in a suspected drunk driver???? Do everyone in the state of Minnesota a favor and report him to the Dept. Ag, It is a very simple process, I have turned in other non licensed applicators and they did a very good and discreet job of checking out the facts, I understand that it is not so much of the fact that he is taking your customers, but the fact that he is not operating his business on a level playing field. You maintain the required ins. and the proper license, and testing, fees and then this guy is skirting the law and of course able to be run his business cheaper.
The is also no accountability in his work, if he misuses chemicals he is not only hurting the yard he is working on but also potentially the water my kids drink as well as your kids, I think you have a responsibility as a good Stuart of this industry to report the incident.