Here are a few things some may of heard over the years, given as "good" advice, but actually are about as bad advice as it comes. I added three to get started, but please add your own. 1) "Cut out queen cells" to prevent swarming. This is one of those things that may be true for some small amount of hives. But the vast majority of hives, it will not work. By cutting out swarm cells, and leaving the old queen, the hive will almost always still swarm. What the beekeeper is left with after the swarm leaves anyways, is a hive with no queen, and eventually a laying worker colony. Best approach when you see swarm cells (after hopefully you doing all you can to suppress swarming to begin with)..... remove the old queen and a few frames of brood and bees. The original hive now thinks the old queen swarmed and you may stop further (after)swarms. (You can also make up nucs with the extra swarm cells if you want.) The parent colony still has ALL the field force, and honey production will not be impacted by removing the old queen and a few frames. 2) You should "treat your bees for AFB just to be safe". Never treat for anything prior to actually having a need for it. Resistance is increased, and when you may actually need treatment, it may not be effective. 3) "Propolis makes for sticky fingers and you should get bees that do not propolize." The bee industry for years promoted the idea that bees should be bred for traits of low propolis production. Some suggest that you should use this line or that line of bees, due to low propolis production. BUT....propolis is anti-bacterial in nature. It is a sealing agent, bonding agent, and yet also may be a vital part of a healthy hive, helping with some of the many disease factors bees are dealing with. New research (about time) is now taking place. Rough cut lumber used on the inside of the hive body has shown that bees will coat the walls, mimicking the inside of what they do in tree cavities, coating everything smooth with propolis. That smooth planed lumber we use may not be good for bees, at least on the inside of the hive. Propolis should be seen as a good thing and a function of any healthy hive.