Subterranean termite colonies may contain hundreds of thousands of individuals, foraging in many different directions. Due to the fact that subterranean termites need moisture to survive, outside, they are most often found in trees, some plants, firewood, mulch and scrap lumber. In structures, subterranean termites can be found entering structures around plumbing penetrations, cement joints, cracks, and other areas that give them access to the structure. Any wood that is in direct contact with the soil is also a prime target for subterranean termites. However, they have been found in aerial spaces where moisture is readily available, as well.
The presence of winged termites or shedded wings inside a home are telltale signs of a termite infestation. Winged termites are highly attracted to sources of light and are most active in springtime. Subterranean termites usually build large colonies underground that are composed of elaborate tunnels and chambers through which they access above-ground food sources. When subterranean termites eat wood, they fill it with soil to help maintain the humidity. If mud tunnels are visible on the walls or foundation of your home, it is highly likely that you are experiencing a subterranean termite infestation.