Definition
Termiticide is the term for any product formulated specifically to kill or repel termites, as distinct from general-purpose insecticides. Because termites live and forage underground or within wood and rarely surface where a homeowner would see them, termiticide products are designed around getting the active ingredient to the termites where they actually travel and feed, rather than treating visible surfaces.
There are two main approaches to applying termiticide. A liquid barrier treatment involves trenching and treating the soil around a structure's foundation with a liquid termiticide, creating a continuous treated zone that either kills termites attempting to cross it or, with newer non-repellent formulas, gets picked up by foraging termites and carried back to the colony. A bait station system, by contrast, places small in-ground stations containing termiticide-treated bait around the perimeter of the structure; termites feed on the bait and transfer the active ingredient to nestmates back in the colony over time. Liquid barriers tend to act faster and create an immediate protective zone, while bait stations work more gradually but can help reduce colony populations over time and require less soil disturbance. A pest control technician will typically recommend one approach, or sometimes a combination of both, based on the property's construction, soil conditions, and the termite species involved.
- Liquid barrier treatments are common for pre-construction and perimeter protection around an existing foundation.
- Bait stations are often used for ongoing monitoring and colony-level control, and can be a good fit where trenching isn't practical.
- Both approaches require professional application and periodic reinspection to remain effective.