How Bait Systems Work
In-ground termite bait stations are installed in the soil around the perimeter of the structure, spaced 8–12 feet apart. Initially loaded with untreated monitoring wood, stations are inspected on a regular schedule (typically every 3 months) for termite activity. When foragers are discovered in a station, the monitoring wood is replaced with a slow-acting insect growth regulator bait — typically noviflumuron (Recruit HD) or diflubenzuron, depending on the product system. Termites that find the bait recruit additional workers to it and share the toxicant through the colony's food-sharing behavior. The colony, deprived of the ability to molt properly, collapses over 3–12 months depending on colony size and activity level.
The key advantage of bait systems over liquid barrier treatment is that they eliminate the colony rather than simply blocking it — a terminated colony cannot re-establish through the barrier zone, while a liquid barrier must be maintained indefinitely to remain effective. Bait systems also require no soil drilling or disruption of finished landscaping.
Bait vs. Liquid Barrier: A Comparison
| Factor | Bait System | Liquid Barrier |
|---|---|---|
| Mechanism | Colony elimination via shared toxicant | Chemical barrier blocks forager access |
| Initial install | In-ground stations, minimal disruption | Soil trenching and/or drilling |
| Time to effect | 3–12 months for colony elimination | Immediate barrier protection |
| Active infestation | Works on active infestations; slower | Preferred for rapid active infestation control |
| Annual cost | Monitoring and bait replenishment required | Periodic barrier renewal required |
| Environmental | Targeted, low overall pesticide volume | Higher pesticide volume in soil |
D&D Pest Control offers termite bait and liquid barrier programs for Franklin County and rural Missouri — visit ddpestcontrolmo.com.