Why does Duval County need a monitoring program at all?
Because the UF/IFAS Extension office says Formosan termites are not eradicated once established in an area, and a colony of several million can forage up to 300 feet from its nest. A single treatment reduces the risk, but the colony's reach is only known by checking, which is why monitoring is part of the work.
The Extension position is about the species and the area, not about any one house. A colony that has been established in a neighborhood keeps the capacity to forage into any property in that area, so the homeowner's job is not to finish a treatment but to keep the structure under observation.
The colony size and foraging distance make that observation necessary. A colony that is feeding through a neighbor's tree line can reach a house the day after a treatment, and the only way to know whether a route has moved is to read the stations and inspect the structure on a schedule.
Monitoring also protects the homeowner from a common mistake, which is to treat the absence of signs as proof of success. Foraging workers are often out of sight, and a quiet season can simply mean the route is not active right now.
What should a monitoring visit actually check?
A monitoring visit checks the stations, the outside of the lot, the structure's accessible voids and moisture, and any change since the last record. Each check is written down, so the next visit can compare, and the list of what was checked is part of the record.
Stations come first. The technician reads each station, notes whether it shows feeding, and replaces bait or the station if the plan requires it. A station that was never read tells nothing, so the read is recorded even when the station is clean.
The structure comes next. The technician sounds the wood that was damaged before, checks the moisture readings near the plumbing and the crawlspace, and looks at the slab edge and any wood in contact with soil. Each point is compared with the last record and changes are marked.
The lot comes last. Trees, stumps and woodpiles are looked at again, because they are where a colony can reappear while the house still looks clean.
- Read and record each station.
- Sound and moisture-test the previously damaged wood.
- Check the crawlspace, the slab edge and any wood in soil contact.
- Walk the tree line, stumps and woodpiles.
- Write down what changed and what did not.
How often should checks happen?
The interval is set in the plan for each property, not copied from a standard. Early checks tend to be closer together, because the first months show whether foraging has stopped, and later checks can be spaced further apart if the record is clean.
A reasonable plan starts with a check soon after the treatment, so the stations and the structure can be read while the colony is reacting. The next check follows once that first result is recorded. If the record stays clean, the interval can widen, but it should not widen so far that a change is missed for a season.
A property with a recent history of activity, a moisture problem that has not been fixed, or a tree nest on the lot needs closer checks than one with a clean record. The plan should say why the interval was chosen, so a homeowner can see the reasoning and question it.
The homeowner can always ask for an earlier visit. A request is not a sign of a bad job, and a good technician will treat a trigger seriously and record the outcome.
Which signs should prompt a call before the scheduled visit?
Call before the next scheduled date if a new mud tube appears, if swarmers are found inside the house, if a damp spot shows near plumbing, or if wood sounds soft in a place that was sound before. Those are changes the program exists to catch early.
A new mud tube is the most common trigger. Photograph it with a scale object, leave it in place, and call the technician. A rebuilt tube is often the first sign that a route has moved, and an early call lets the plan respond before the damage grows.
Swarmers inside the house are another trigger. Winged termites in a room, on a sill or near a window after a warm evening should be reported the same day. Wings left behind are useful evidence, so keep them in a bag or photograph them.
A damp spot near plumbing or a wall that was dry at the last visit is a trigger even if no insect is seen. The moisture that kept the wood wet may be a leak that the plan needs to know about, and the technician can take a reading and note it.
- A new mud tube on the foundation, a pier or a tree.
- Swarmers found inside the house or near a window.
- A damp spot that was dry at the last visit.
- A soft or hollow sound in previously sound wood.
- A station that is missing, moved or showing feeding.
What should a homeowner keep from each visit?
Keep the dated record, the plan, the list of stations and their numbers, and any photographs sent between visits. Those documents let the next technician see the history, and they are the homeowner's evidence if the treatment has to be reviewed later.
The record is short but it matters. It lists what was checked, what was found, what was changed and when the next visit is due. A homeowner who files each record in the same place can see the trend without asking anyone to explain it.
The station map is the other document worth keeping. It shows where each station sits, so a new technician can find it, and it shows which stations have been active. A station map drawn on a copy of the lot plan is usually enough.
Photographs sent between visits belong with the record. A dated photo of a tube or a damp wall is the best evidence of when a change began, and it saves the next visit from guessing.