Which type of wood do drywoods prefer?

Drywood termites primarily prefer sapwood because it contains higher moisture content and is typically softer than heartwood. Sapwood is the younger, living part of the tree that serves as a conduit for sap, which provides the necessary nutrients for the tree. This moisture content is crucial for drywood termites, as it aids in their digestion and is essential for their survival, making sapwood an ideal food source.

In contrast, heartwood, which is the older, central part of the tree, is denser and generally drier. As trees age, heartwood loses its moisture and becomes more resistant to decay and insect damage, making it a less desirable habitat for drywood termites. Though bark serves as the protective outer layer of the tree, it does not provide the nutritional benefits that sapwood does.

Therefore, sapwood is the preferred choice for drywood termites, as it aligns with their dietary needs and environmental requirements.