Can you fellows tell me if a license is required to use a herbicide, specifically Round-Up. I've had two different people tell me two different things, one that you can, one that you can't. I had assumed since it is a non-restricted product, that it was legal to do so, but now I'm not so sure. I live in MO, if that makes a difference, as I don't know whether this type of regulation varies from state to state. Also, if no one knows for sure about MO regulations, who, or what agency would I need to contact to find out for sure. Thanks.