Habitat
Colonies of Formosan termites can contain tens of thousands of termites and stretch for up to 300 feet underground. They may also be found in the walls of buildings where they build mud nests. The underground colonies of subterranean termites may contain nearly 2 million insects. The termites build tunnels to gain access to new food sources. The colonies of both types of termite are divided into groups of soldiers, workers and reproductive insects.
Identification
Formosan termites are oval and narrow, measuring about half an inch in length. They are a yellowish-brown color and have six legs, antennae and wings. Subterranean termites range in length from one-eighth of inch to 1 inch and have a similar-shaped body to Formosan termites. Soldiers have a large yellowish-brown head, while the workers are creamy white to grayish-white.
Diet
Formosan termites feed on wood and decaying plants and trees. Their removal of dead trees in nature helps make room for new plant life. Subterranean termites eat plastics, wallpaper and materials that contain cellulose, such as dead wood and wood byproducts. They are the most destructive type of termite and can destroy a building's foundations, support beams, insulation and plumbing.
Prevention
The sudden emergence of winged termites or evidence of wood damage or mud tubes may suggest the presence of a termite infestation. Termites need moisture to survive, so ensuring water can drain away properly from buildings helps stop colonies from becoming established. Damp wood also should be kept away from buildings. Eliminate any contact between the wooden parts of a building's foundation and the soil.