Therrin

So anyone who simply runs a nursery, as a business, "works with living trees" but don't have any thing to do necessarily with tree care. However, according to your description, they would still be classified as an "arborist" not a tree-salesman.

Is this correct?

What about rigging dismantles of dead trees? These are not arborists?

I think (personally) that's an extremely shallow definition, but I think there's probably lots of people out there who think along similar lines. We need to educate them.