Jeff from Burnet Texas writes
For bees in a wall, it is recommended to use a dust in the wall voids, such as Tempo Dust. This will provide control for up to 7 months if the dust is undisturbed. Be sure to only use a light coating of dust so that the bees will not avoid the area. 1-2 puffs out of the bottle is sufficient. We do recommend consulting with a professional if you believe you have a honey bee hive in your wall since you must remove all materials, honey, etc. completely to avoid any reinfestation or secondary problems like hive beetles and mold.
Answer last updated on: 06/06/2019