What is Fumigation?
Application of any chemical in a gaseous state in a gas tight enclosure to kill insect and pest.
What is Fumigant:
Any chemical at a particular temperature and pressure can exist in gaseous state in sufficient concentration and for sufficient time to be lethal to insect and pests
Why fumigation is required:
Requirement of fumigation is manifold. Firstly every country has got a list of insect/pest which the concerned PPQ of the country refuses to import them with goods of import to their country and to do so fumigation is the only method.Secondly under ISPM-15, any wood packing material moving out of country has to be fumigated with Methyl Bromide. Thirdly and most importantly when grain is stored for months, they require fumigation to protect it from insect infestation.