Alot of people dont use ru on ready crops. My family doesnt use ru and we havent got caught. If you had a complaint about seed or something like that a Monsanto field rep would come out and want to see reciepts and talk to your dealer and ask neighbors and pretty much investigate your spraying. Only if you have problems I feel you might get caught using a generic when you shouldnt have been. They would basically stand behind no guarantees if you were using a generic, and I think it is somewhat against the law.