Uninstall AVG antivirus app MAC

Hi,
I have recently uninstalled my AVG antivirus app by moving the app to my trash and emptied the trash. I have then purchased another anti virus program however when installing the new program it has detected that my AVG app has not been uninstalled. I am unable to locate AVG app in my Application or any where else. What should I do to uninstall if I can't see the app icon anymore?
PLEASE HELP!
thanks

Hi Caroline,

We're sorry to know that you've switched to a different service. 
However, we'd like to clarify that not all apps can be uninstalled by dragging them into trash on MAC. 
You can try the below steps to manually remove AVG files : 
- Open Finder 
- In menubar select Go > Go to Folder… 
- Type /Library/Application Support/ and hit the enter key 
- Locate and delete AVGAntivirus folder 
- Reboot computer and AVG should be removed