I have a lawn service in Louisiana (commercial and residential). Although I havent' charged for spraying Round-Up or fire - ant killer, I have used these to keep my customers' properties looking great. On another post someone mentioned you have to be licensed to apply chemicals for money. I was unaware of this. Is this true?? If so, what steps do I take to become licensed - who to contact, classes, costs, etc. Also, can you get into trouble or does anyone even monitor this type of thing. Any advice - I've worked hard to build my business and made some major investments and would like to do things right - I take my work seriously. Thanks.