What Greenville and Upstate homeowners should know as Formosan termites move into the region

Terminix Service, Inc., one of the largest pest control companies in North America, is alerting homeowners after entomologists confirmed the presence of Formosan subterranean termites (Coptotermes formosanus) in the Greenville and Upstate region, the latest sign that this destructive invasive species continues to spread from its original foothold along the state’s coast. Native subterranean termites are already common across the Upstate, but pest management professionals say this species behaves differently, and homeowners should know what to watch for.

A More Aggressive Relative of a Familiar Pest

Formosan termites are technically a type of subterranean termite, but they don’t act like the ones most South Carolina homeowners know. The main difference is colony size. A typical native subterranean termite colony may hold hundreds of thousands of termites, while a mature Formosan colony can number in the millions.

Larger colonies mean Formosan termites can cause serious structural damage much faster than native species if an infestation goes unnoticed. They build extensive mud tubes and, when moisture is available, can even construct above-ground carton nests that let them survive without constant contact with soil.

The swarming season is often when homeowners first notice something is different. Formosan termite swarms are typically large, occurring in late spring or early summer around dusk, and can bring hundreds or even thousands of winged termites to outdoor lighting. For many homeowners, a big swarm is the first clue that a colony is active nearby.

“The good news is that the fundamentals of prevention and treatment carry over from other subterranean termite species,” said Kevin Hathorne, BCE, Technical Director at Terminix Service, Inc. “Early detection and consistent, ongoing protection remain the most effective tools homeowners have, regardless of which species they’re dealing with.”

Warning Signs Homeowners Should Watch For
– Most homeowners don’t spot termites themselves. They notice the evidence left behind. Common warning signs include:
– Mud tubes climb foundation walls, piers, or other structural surfaces.
– Swarms of winged termites, particularly in the evening during late spring or early summer.
– Piles of discarded wings near windows, doors, or light fixtures after a swarm.
– Wood that sounds hollow, appears blistered, or feels soft when probed.
– Doors or windows that suddenly become hard to open or close, as damaged wood warps.

These signs apply to native subterranean termites and Formosan termites alike. Homeowners can lower their risk by fixing moisture problems, keeping wood away from soil contact, storing firewood away from the house, and keeping mulch from piling against the foundation.

What to Look for in a Termite Protection Contract
– Termite contracts vary widely in what they cover, so homeowners should read the fine print and ask questions before signing. Key items to check:
– Whether the contract includes both annual inspections and retreatment if termites are found.
– Whether it includes a repair warranty covering termite damage after treatment has been properly maintained. Some contracts only cover retreatment, while others include repair coverage as well.
– What homeowner responsibilities are required to keep the warranty valid, such as maintaining annual inspections, correcting moisture issues, or promptly reporting suspected termite activity.
– Which termite species are covered? In areas where Formosan termites are now established, homeowners should confirm their plan covers all subterranean termites, including Formosan termites.
– Whether the treatment method is built for long-term protection, such as a professionally installed baiting system or a properly applied liquid treatment.

“Perhaps most importantly, homeowners should choose a reputable pest management company that performs thorough inspections, clearly explains the contract, and stands behind its work,” said Hathorne. “A termite contract isn’t just a treatment. It’s an ongoing partnership to protect one of the largest investments most people will ever make.”

For more information on Formosan termites and homeowner prevention tips, visit TrustTerminix.com.

About Terminix Service, Inc.

For nearly 80 years, our customers have trusted Terminix Service, Inc., for the very best in termite and pest control protection for their homes and businesses. With annual revenue in excess of $165 million, the family-owned and operated Terminix Service, Inc. is one of the largest pest control companies in North America. Terminix Service, Inc. operates in South Carolina, western North Carolina, and the Central Savannah River Area of Georgia. Visit www.TrustTerminix.com or call 1-800-TERMINIX.