Termite Bait Station Monitoring Schedule

Why this matters

A subterranean termite bait program only works if the stations get checked on a real schedule and every event (hit, no-hit, station compromise, bait replenishment) is recorded. Skip a monitoring cycle and the colony can hit a station, eat through the available active ingredient, and return to feeding on the structure with no record that it ever happened. The 2024 Sentricon Always Active and Trelona Compressed Termite Bait labels both require documented monitoring intervals; missing them voids the manufacturer damage warranty and leaves you exposed on any retreat claim.

Stations covered by this SOP

This procedure covers in-ground subterranean termite bait stations placed on a residential or light commercial perimeter at approximately 10 foot spacing per the device-specific label. Above-ground stations applied to active mud tubes are tracked under a separate workflow because their service cadence is event-driven, not scheduled.

Initial install record

At install, the technician records: GPS or building-diagram coordinate of every station; soil type (sandy, loam, clay, fill, rocky); proximity to known conducive conditions (downspout discharge, irrigation head, mulch bed, wood-to-soil contact); product lot number and manufacture date of the bait cartridge; technician initials and date. This becomes the baseline. Stations within 24 inches of the foundation, within 36 inches of a known prior strike, or at any irrigated area should be flagged for tighter monitoring.

Monitoring intervals

Use the more frequent of the manufacturer's label and these field-tested intervals:

• Months 1 through 12 after install: every 90 days minimum, every 60 days in the active-feeding season (April through October across most of the U.S., year-round in the Gulf Coast and southern Florida).
• Year 2 onward with no hits: every 90 days.
• Year 2 onward after a confirmed hit anywhere on the perimeter: every 60 days for 12 months, then revisit the schedule.
• After any major site change (new mulch bed, new irrigation zone, foundation work, adjacent demolition): one extra inspection within 30 days.

Sentricon Always Active stations are labeled for annual inspection minimum; Trelona ATBS stations are labeled for 90-day inspection minimum. Treat the label as the floor, not the ceiling.

Per-station inspection procedure

1. Brush soil clear of the cap. Photograph the station and the surrounding 2 feet.
2. Pull the cap with the dedicated station tool. Inspect for mud tubing, frass, soldier or worker termites, ants, or evidence of disturbance (roots, water saturation, station crushed by mower).
3. If termite activity is present, record the species if identifiable (Eastern subterranean Reticulitermes flavipes is the most common east of the Rockies; Formosan Coptotermes formosanus in the Gulf and Carolinas; arid subterranean Reticulitermes hesperus in the Southwest). Photograph and log.
4. Check bait cartridge condition. Replace if more than 25 percent consumed, water-logged, or past the manufacturer's shelf life from the recorded manufacture date.
5. Replace the cap firmly and brush soil back. Confirm the cap is flush; raised caps get clipped by mowers and become liability.
6. Sign the service ticket with date, time, and station-by-station notes.

Documenting a hit

A confirmed hit triggers a separate workflow inside the same monitoring cycle: notify the homeowner the same day (label requirement on most products); replenish bait per the label, do not exceed the maximum cartridge count per station; recheck hit station and the two adjacent stations every 30 days until consumption stops and no live termites are present; add a fresh row to the annual termite inspection report (WDIR or NPMA-33 form depending on the state). Sustained hits over multiple cycles in the same quadrant warrant a structure re-inspection for missed entry points and possibly a supplemental liquid termiticide treatment per the label.

Records that protect the warranty

Each station gets a row per visit: date, technician, condition, activity, bait status, action taken. At year end, generate a perimeter map showing hit history. Most state regulators (Florida DACS, Texas Department of Agriculture, North Carolina Structural Pest Control Committee) audit these records on complaint and at routine inspection. Sentricon and Trelona corporate also audit certified operators; warranty registration renewals require proof of label-compliant service intervals.

References

1. EPA-registered product labels for Sentricon Always Active (recruit HD bait, hexaflumuron-class chitin synthesis inhibitor) and Trelona ATBS (novaluron-class), enforceable under FIFRA 40 CFR Part 156.
2. NPMA-A1, "Minimum Service Frequency Guidelines," and NPMA-33, "Wood-Destroying Insect Inspection Report."
3. ANSI / National Pest Management Association standards for termite bait monitoring documentation.
4. State-specific examples: Florida 5E-14, Texas Structural Pest Control Service rules, North Carolina 02 NCAC 34.