Pest Facts: Subterranean Termites

Description

Subterranean termites live in underground colonies or in moist secluded areas above ground that can contain up to 2 million members. They build distinctive "mud tubes" to gain access to food sources and to protect themselves from open air. Termite colonies are organized into castes depending on tasks -- workers, soldiers and reproductives. The characteristics of a subterranean termite are dependent on the termite's role in the colony. Cream-colored Worker subterranean termites are 1/8 to 3/8's of an inch in length. Soldier subterranean termites are of a similar body length, but are distinguished by their powerful mandibles. Soldier termites have cream-colored bodies and brown heads. Reproductive subterranean termites are approximately one inch long.

Pest Facts
Color: Creamy brown
Legs: Six
Shape: Long, narrow, oval
Size: 1/8 inches
Antennae: Yes
Flying: Yes
Region: All 50 States
  • Cause serious damage to structures often long before they are discovered — more than $1.5 billion in property damage a year to over 600,000 homes in the U.S.
  • Feed on books, papers or anything containing cellulose.
  • Favor warmer climates and actively avoid light.
  • Live in underground colonies — some containing over two million members.
  • In a larger nest, a queen and king may live for 15 years, with the queen laying up to one egg every 15 seconds for most of her life.

Habits

Subterranean termites live underground and build tunnels, referred to as mud tubes, to reach food sources. Like other termite species, they feed on products containing cellulose. Subterranean termites swarm in the spring -- groups of reproductive termites go off to start new colonies.

Habitat

Subterranean termites need contact with the soil to survive and live underground. They can build tunnels through cracks in concrete.

Threats

Subterranean termites are by far the most destructive species. They can collapse a building entirely, meaning possible financial ruin for a homeowner. The hard, saw-toothed jaws of termites work like shears and are able to bite off extremely small fragments of wood, one piece at a time.

Prevention

Avoid water accumulation near your home's foundation. Divert water away with properly functioning downspouts, gutters and splash blocks. Reduce humidity in crawl spaces with proper ventilation. Never bury wood scraps or waste lumber in the yard. Most importantly, eliminate wood contact with the soil. Maintain a one-inch gap between the soil and wood portions of the building.

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Subterranean Termites

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