What happens if you block the entrance to a bees nest?

What happens if you block the entrance to a bees nest? For honey bees, it is essential that entrance points or blocked off, and if possible remove all the honeycomb. Failure to do this will cause robber bees to find the infected honey and take it back to their hive, thus contaminating it.

For honey bees, it is essential that entrance points or blocked off, and if possible remove all the honeycomb. Failure to do this will cause robber bees to find the infected honey and take it back to their hive, thus contaminating it.