Fumigation is a method of using a lethal gas to exterminate pests within an enclosed space. There are two methods of performing a fumigation. One is to seal the structure with plastic, tape or other sealing materials, and the other is by enclosing the structure in a “tent” of vinyl-coated nylon tarpaulins.
Fumigation becomes necessary in order to keep away exotic pests and diseases entering into the country while permitting reasonably rapid clearance of containers. Timber insects pose a significant Quarantine risk in all countries and accordingly all wooden packing material used in the export packing should be fumigated.
The length of time required for fumigation varies. A fumigation can take anywhere from six hours to one week depending on the type of infestation, dosage, temperature, size of the structure and other factors.