Tom from Dallas, Nc writes
Boracare is the best treatment option for any type of wood destroying insect including powder post beetles. However, no matter how new or old the wood is, Boracare can only be used on wood in its raw natural state. If the wood has any type of stain or finish on it, you would need to sand it off, then apply Boracare and re-finish it.
Answer last updated on: 12/12/2018