Bleach does not kill bees, unless the bees are drowned in bleach liquid. Bleach is a pesticide, not an insecticide, which is required to kill bees effectively. Bees may die from being submerged in any liquid, but bleach is not intended for killing insects.
What kills bees fast?
Vinegar Solutions and Sprays
Bees cannot handle vinegar, causing them to die almost instantaneously after exposure. Simply mixing a solution of strong vinegar and water is all you have to do to get rid of small amounts of bees in your home.
How do you destroy a beehive?
To remove a beehive located inside your walls, tap with a hammer and listen for the bees' answering buzz. This is where the nest or hive is located. You'll need to bore a hole (preferably through an outside wall) and apply the insecticide to the hive.