ABSTRACT
The food of insect is same as that of humans and other animals; insects came into being earlier than man. Hence, insects started feeding first on grains. The occurrence and spread of several insects are directly related to environmental conditions, but the methods of storage and the risks of cross infestation from imported commodities are responsible for infestation. Thus infestation of stored grain and grain products may be supplemented in many ways. Most infestations of stored-grain insects originate from immigration of the insects into the bin from outside. The natural habitats of insects feeding grain must have been field. The field infestation of storage pests like rice weevil, lesser grain borer, angoumois grain moth, pulse beetle, and potato tuber moth have been reported and all are found to be primary pests with good mobility of adults. The infested bags have potential to cause infestation.
