I have a beehive that setup shop in a 15 gallon overturned plant container. They have been there for about a year and they do not bother me at all, I have lots of fruiting plants so I like them in my yard. The problem is there are a few trees around the hive that need to be heavily trimmed. Would it be safe to block their entrance hole ( there are only two small openings so this would not be hard to do) for a few hours so I can safely trim the tree? I am confident I can safely block the holes and contain them, which I would do in the middle of the night to make sure most of the bees are inside. I just want to make sure this is okay for the hive and won't cause any problems for the bees....