02/28/2025
Eastern subterranean termites are active 24/7/365, but they only swarm once a year--SPRING!
Finding swarmers in a building is often the first indication many homeowners have that they have a termite problem. An established termite colony can contain hundreds of thousands of termites. Most are workers, which are wingless, white and sightless.
The black, winged insects you see here are swarmers, or reproductive termites (about 3/8 inches long including the wings). Termites shed their wings after swarming.
Swarmers emerge only once per year, usually in the spring, and they are never alone. Usually there will be several hundred to a few thousand swarmers, all emerging simultaneously.
Their goal is to mate and attempt to begin a new colony. But it is not the swarmers you need to worry about—it is the established termite colony from which they emerged. Termite colonies do not produce swarmers until they have been established for several years.
Finding eastern subterranean termite swarmers inside a building (either dead or alive) is a sure sign the building is infested and needs to be professionally treated.
➡️Termite control is not a do-it-yourself project! You need to hire a licensed commercial pest control company to make sure your house is protected from termites.
The Protect Your House from Termites Extension publication is a great resource and guide for homeowners. It answers many of the questions you might have. Read it here: https://extension.msstate.edu/publications/protect-your-house-termites
You can always connect with your local MSU Extension office for further guidance, too! Find yours here: https://extension.msstate.edu/county-offices