Pest Control Inventory: Tracking Chemicals, Equipment and What Each Job Actually Used

A pest control business does not keep its stock in a store. It keeps it in the vans, and the vans are out. The office register says eighteen litres of the termiticide are in hand. Four vans have part-used cans. One technician has a full can taken last Tuesday for a job that was postponed. None of it has been written down.

The count at the end of the quarter then comes out short. There is no way to tell whether the stock was used, spilt, over-diluted or taken home. Most often it was used and not recorded. By then the argument may have damaged trust with a technician who did nothing wrong.

A stricter monthly count does not fix this. Issue and consumption need to be recorded at the point they happen, on the phone the technician already has in the van.

Every litre of concentrate makes three movements. The store issues it to a technician. Some is consumed on a named job. What is left is returned, or stays in the van as opening stock for tomorrow. When all three are recorded, the stock position is current and every shortfall has a date and a person against it.

Issue is a two-minute step at the start of a shift, recording that this technician takes this quantity of this batch. Consumption is recorded on the service report the technician already fills in, as the dilution and the quantity applied. The return is what goes back on the shelf.

None of this needs a storeman. It needs the same app the technician uses to close the job, with the chemical fields on the same screen as the customer’s signature.

Record the batch number and expiry against every issue, and carry it through to the job. When a customer complains of a reaction, or an inspector asks what was applied at a school on a particular date, the answer is a record rather than a recollection.

This also catches expired stock. A concentrate bought in bulk and used slowly can pass its date in a van. The usual sign is that it stops working, and the same property gets treated twice on warranty.

Set the system to warn on stock approaching expiry and to refuse issue of stock past it. That single rule removes a class of repeat complaints.

Sprayers, foggers, moisture meters, ladders and drilling machines are capital that leaves the premises every morning. Assign each one to a named technician with a serial number. The question of where a particular fogger went then has an answer.

Against each piece of equipment keep the purchase date, the service interval and the last service. A fogger that has not been serviced in eleven months is a risk to a job on a customer’s premises. Knowing in advance costs less.

When a technician leaves, the list of what they hold is the handover checklist. This small step avoids an argument at most exits.

The numbers to watch are consumption per job type and variance between issued and consumed. After a quarter of data, a residential cockroach treatment has a normal quantity. A technician consistently using twice that is over-applying, under-diluting or recording carelessly. All three are worth a conversation, and none is visible without the record.

Reorder becomes a calculation. Usage per week against stock in hand gives a reorder point per chemical. This matters most for items with a long lead time from the distributor.

The inspection file is also easier to produce. What was applied, where, by whom, at what dilution and from which batch is a report, not an afternoon of reconstruction.