What are carton nests and why are they so effective in protecting a termite colony?
Carton material is a combination of frass, soil, cellulose and saliva. Large carton structures are formed first as a series of interconnected foraging tunnels. Larger foraging galleries and cells with thickened walls are constructed as termites continue to add to this elaborate gallery system. When the soil used in construction is primarily sand or when lime is incorporated, the carton can take on an almost masonry-like density. Although these structures are commonly referred to as carton nests, it is important to note that not all carton material contains reproductives or brood. Therefore, it should not be presumed that removing a carton nest from a structure eliminates the source of the infestation. The thickened walls of the carton help protect termites and the large structures provide areas for termites to retreat when threatened.
