What an interesting question! I put "bee bait" in my search engine and all kinds of products came up.
Here's an interesting article with great advice, such as: **don't overdo it on the bait. A little goes a long way. **set up a sugar water station nearby. I assume lots of flowers will make things attractive too. **hive advice, ***etc.
http://beekeepinglikeagirl.com/how-to-lure-a-swarm-of-bees/
Good luck to you! We need our bees. ( I saw that harmful pesticides and herbicides are being found in honey, so provide organically raised flowering plants if possible. :)
Here's one more:
http://www.beeculture.com/get-bait-hives-ready/