How to Get Rid of Powderpost Beetles
The following points will help discourage powderpost beetle infestations:
- The first thing to do is reduce the moisture content in the wood, to less than 20% moisture. Moisture meters can be used to determine moisture level in the wood. Central heat, vapor barriers and good ventilation can help control moisture. Rough-cut lumber should be dried in a kiln to kill all stages of the beetle. Reducing moisture may not be enough to completely control powder post beetle infestations.
- Sanded and varnished wood will not be as attractive to adult beetles. They can not penetrate or find cracks and crevices in the wood surface in order to deposit their eggs.
- Don't store valuable items in sheds and barns. Wood boring beetles are common in these areas.
- Infested furniture that is unfinished (unvarnished, not painted, not waxed or not sealed) can be treated with Tim-bor or Boracare. Boracare and Timbor will prevent newly hatched larvae from entering the wood. Infested furniture that can not be treated with a product like Tim-bor and Boracare can be treated in fumigation chambers. Fumigation chambers are used to fumigate infested furniture. Look for pest control operators that are licensed for fumigations.
- If practical, remove infested wood. If not, use residual borate insecticides such as Boracare or Timbor. Due to its long life cycle (12-18) months in the wood, you may see emerging beetles emerge even after treatment. The eggs and coming larvae will come in contact with the insecticide to kill them.