What type of termite is typically associated with the presence of carton nests?

The correct answer is Drywood termites. These termites are known for creating nests within the wood they inhabit rather than in the soil, leading to what are called carton nests. These nests are constructed from a combination of wood particles, fecal pellets, and saliva, allowing Drywood termites to thrive in drier conditions that would not support other types of termites that need contact with the soil for moisture.

In contrast, Subterranean termites typically build their colonies underground and are more associated with mud tubes and soil rather than carton nests. Formosan termites, a subtype of subterranean termites, also create their nests in soil and are notorious for aggressive behavior but do not typically construct carton nests. Fat-headed termites, while a recognized group, are not commonly discussed in the context of nest types relevant to pest control or structure concerns. Thus, Drywood termites are uniquely identified by their distinctive nesting behavior, making the identification of their nests critical for effective pest management.