Carpenter ants are primarily known for what behavior?

Carpenter ants are primarily known for building nests in wood, which is a key characteristic of their behavior. Unlike some other ant species that may create their nests in soil or other organic materials, carpenter ants specifically excavate wood to create their colonies. They prefer soft, decaying wood, which is easier for them to tunnel through. This behavior is aimed at establishing nests that provide shelter for their queen and her brood. The nesting activity often leads to structural damage in buildings, making carpenter ants a concern for homeowners and pest management professionals.

The other options address behaviors that are not central to carpenter ants. While they may occasionally feed on human food, it is not their primary behavior. Similarly, although carpenter ants can create notable colonies, they typically do not build them underground; they prefer to construct them within wood structures. Lastly, carpenter ants are not known for transmitting diseases, unlike some other pests, such as mosquitoes. Understanding these traits is crucial for identifying and managing carpenter ant infestations effectively.