Wood Destroying Organism (WDO) Home Inspection Practice Exam

What is one method to control powderpost beetle infestations in structural wood?

1. Applying liquid insecticide to the wood's surface

2. Removing the affected wood completely

3. Exposing the wood to sunlight

4. Using heated air to dry the wood

The correct answer is: Applying liquid insecticide to the wood's surface

Applying liquid insecticide to the wood's surface is an effective method to control powderpost beetle infestations because it directly targets the insects and their larvae. When the insecticide is applied, it penetrates the wood and reaches the active beetles, disrupting their life cycle and preventing further damage. This approach is often utilized in conjunction with other methods to provide a more comprehensive solution to a powderpost beetle infestation. Understanding that powderpost beetles typically infest wood that has a moisture content above 10%, treatments that involve maintaining lower moisture levels are also crucial for long-term control. While removing affected wood, exposing it to sunlight, or using heated air to dry it might seem viable, they may not address the underlying issue as effectively or immediately as applying a targeted insecticide would. These methods can also require more extensive effort, time, and potential damage to surrounding structures, making the application of liquid insecticides a commonly preferred choice for immediate intervention.