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Formosan Subterranean Termites

Formosan subterranean termites are one of several termite species that threaten homes and other structures in Hawaii and the southern half of the continental United States.

Originally from mainland China, Formosan termites have been established in the continental U.S. for only about 50 years. Unfortunately, they are more vigorous, aggressive and successful than native termites. In fact, the Formosan termite has been called the "super" termite because of their large colonies and ability to consume vast amounts of wood in a relatively short time.

A mature colony of Formosan termites can number in the millions and consume as much as 13 ounces of wood per day. As a result, Formosan termites can severely damage a structure in as little as three months. Formosan termites are most visible during their annual mating flight. However, they actually cause more damage after the swarm is over. For this reason, it's extremely important to start a control program as soon as you find out that you have Formosan termites on your property.

Some quick facts about Formosan termites:

  • Formosan colonies can be big. While native subterranean termite colonies might support an average of 300,000 workers, Formosan colonies can average millions of workers—all of them foraging for food (wood).
  • A colony of Formosan termites could forage an area more than one acre in diameter.
  • As Formosans infest a structure, they use soil and wood cemented together with saliva and feces to build hard nests, called cartons, within walls. Large cartons can actually cause walls to bulge. These nests house thousands of termites as well as hold moisture. Once established, Formosan termites can live indefinitely without soil contact.
  • Formosan termites can also infest and destroy otherwise healthy trees.
  • Swarmers are larger than native species, and they swarm in the evening and later in the year (May-June).
  • Soldiers comprise about 10% of the colony.
  • Formosan termites will even attack and destroy non-wood materials. They have been known to chew through plaster, plastics, asphalt, and even thin sheets of soft metals like lead and copper.
  • Queens can produce 1,000 eggs a day. 

If you believe your home may be in danger from Formosan subterranean termites, contact a Termidor Certified Professional now.

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