When the fumigation (gassing) process is mentioned, macro-scale operations such as massive silos, large ocean-going ships, or sealing an entire factory usually come to mind. However, in many cases, the pest problem or legal obligation (like ISPM-15) covers a much smaller, localized, and specific product group. For example, it is meaningless to seal the entire warehouse and incur massive costs for a 20-pallet wooden crate to be exported abroad, a few tons of dry food starting to get infested in a warehouse, or a valuable antique furniture group. In such cases, the method that stands out with its operational speed, cost advantage, and flexibility is "Under-Tent Fumigation". In this article, we will examine the areas of use of under-tent fumigation, which is a life-saving intervention for the logistics and export sector, its role in ISPM-15 requirements, and application procedures.
In Which Situations is Under-Tent Fumigation Used?
This method is based on the principle of rapidly isolating and gassing products that can be moved but do not have a closed room or silo exactly where they are:
- Preparing Wooden Pallets and Crates for Export: It is mandatory to clear wooden packaging used in international trade of insects in accordance with the ISPM-15 standard. Wooden pallets stacked in the factory yard are taken under a tent, rapidly fumigated, and sealed without the need for heat treatment ovens.
- Localized Warehouse Problems: When a moth infestation is detected in only one batch of rice or hazelnuts in a large food warehouse (for example, the main warehouse of a supermarket), to prevent the problem from spreading to the entire warehouse, only those problematic pallets are pulled aside, a tent is closed over them, and immediate intervention is made.
- Historical Artifact and Antique Restoration: Extremely sensitive and valuable wooden carvings, sculptures, or antique furniture found in museums or with collectors, to which liquid pesticides cannot be applied, are taken under a tent and subjected to a sensitive gassing process to be saved from the woodworms settling inside them.
The Process: Zero Tolerance, Total Isolation
Although under-tent fumigation is small in volume, it requires the same security seriousness as large operations due to the toxic gases it contains (Phosphine, Sulfuryl Fluoride, etc.).
- Site Selection: The area where the procedure will be performed should be a well-ventilated outdoor space or an isolated corner of the factory away from human circulation. It is preferable that the ground floor is smooth and impermeable, like concrete or asphalt.
- Stacking and Covering: The pallets or products to be exterminated are arranged with gaps between them to allow gas circulation. They are covered with a thick and durable special polymer-structured fumigation tarpaulin (tent) that never leaks gas out.
- Sealing (Sandbags): The skirts of the tent (the parts touching the ground) are continuously pressed all around with heavy sandbags (sand snakes). If necessary, liquid adhesives are used to make the tent's connection to the ground 100% airtight.
- Gas Release and Waiting: Tablets or gas in an amount appropriate to the volume are left inside the tent. "DANGER FUMIGATION - TOXIC GAS" warnings are hung on it, and the surroundings are surrounded by a security ribbon. It is kept closed for 24 to 96 hours depending on the targeted pest (woodworm or warehouse moth).
Cost and Time Advantage
The biggest advantage of under-tent fumigation is that it is "portable". You don't have to load your products onto trucks to transport them to a gassing room or a distant fumigation center. The operation takes place in the yard of your own factory or in a corner of your own warehouse. This reduces transportation costs, labor costs during loading/unloading, and potential physical damage the product may suffer during transport to zero. Furthermore, all documents required for customs and ISPM-15 certificates are issued immediately after the process.
Conclusion
In local pest crises that cast a shadow on your export goals or the hygiene of your warehouse, there is no need to stop the entire system. Under-tent fumigation is a fast, practical, low-cost, and pinpoint solution. No matter how small the target is, due to the deadly nature of the gas used, this process must be performed by professional fumigation operators approved by the Ministry of Agriculture, not by unauthorized persons. Wherever your products are, we are there with our security tent.