Most structure-infesting subterranean termites in North America are native species. The Formosan subterranean termite is an introduced species native to southern China. It is the most widely distributed and economically important subterranean termite in the world, although its distribution in the United States is mostly limited to southeastern states and Hawaii. Formosan subterranean termites can cause more structural damage in less time due to their high reproductive capacity, which produces colonies ten times the size produced by native subterranean termites. Formosans and native subterranean termites can be differentiated by looking at alate forewings under magnification. In general, subterranean termites have two heavy veins and no cross veins along the top margin of the wing. Formosan wings are also covered with fine hairs, giving them a velvety appearance.
Conventional liquid termiticides provide chemical barriers to subterranean termites underneath and/or around structures. They are the fastest and most economical management method that should last at least five years. Termiticide baits are designed to eliminate subterranean termite colonies on properties. Because they greatly reduce the amount of pesticide applied to the soil, termiticides baits are generally preferred by customers desiring a “green” management option. Both are able to effectively manage subterranean termite infestations in structures.
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Check out our Termite Biology & Pest Identification ProTraining course:
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Managing termites in structures requires some knowledge of their biology to understand how and why they do what they do and, also, how to stop them. After completing this course, you should be able to know the differences between termites and ants; know the differences between drywood and subterranean termites; recognize the termite castes and understand how they develop; and identify the drywood and subterranean termite pests that are most common in the United States.
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