In the USA, many pesticides are available for the use by the general public. However, their is also a category of pesticides called Restricted Use Pesticides (RUP). These RUP can only be obtained if the user has what is called a Restricted Use Pesticide license. Farmers, applicators, etc. obtain this license by passing a course on proper pesticide use, pesticide safety procedures, which pesticide can be used on which crop, reentry periods etc.. License holders have to be recertified every couple years. In my estimation this is a much better situation, than radically disallowing any use at all under any circumstances what so ever. Lastly to Cookie Monster, thank you for your link. it is an excellent link, I had no idea,