Rule to effect only the contents of the folder

How can I put a folder "Main Folder" filled with other folders "Sub Folders" (that also have files in them) into a watched folder & have the rule move "Sub Folders" (with files still in them) to another folder & the "Main Folder" now empty moved to trash? I want to have different rule for sub folders than rule for main folder?
I tried to do this with "Run rules on folder contents" changing label colors to sub folders blue & leave Main folder no color change but it would also effect the main folder?
I tried to do this with "Run rules on folder contents" changing label colors to sub folders blue & leave Main folder no color change but it would also effect the main folder?