What type of wood do subterranean termites prefer?

Subterranean termites have a preference for soft, decaying wood primarily because it provides them with the cellulose material they need for sustenance. As termites are decomposers, they thrive on materials that are already broken down or beginning to decay, making it easier for them to digest. Additionally, decaying wood often has higher moisture content, which is essential for subterranean termites since they need to maintain a certain level of humidity to survive.

Freshly cut wood, while appealing to some extent, is typically too hard and lacks the decomposing characteristics that make decaying wood so attractive to these pests. Likewise, hardwoods are generally denser and more resistant to infestation compared to softer types of wood. Plywood can also be less appealing due to its treatment with preservatives and adhesives that deter termites. Each of these factors reinforces why decaying wood is the preferred choice for subterranean termites, as it aligns with their biological needs and environmental adaptations.