Knowing the difference between a tree Lopper & An Arborist

https://golf-wiki.win/index.php?title=An_Arborist_or_Tree_Lopper%3F_How_to_Tell_them_apart

One of the most pressing needs following a thunderstorm is to have the branches and leaves of the trees in a compound trimmed. Here a differentiation has to be made between the Arborist and the tree lopper who