Climate is the most important factor determining the effectiveness of a storage system for feed ingredients because of the close relationship between insect growth and ambient climatic conditions. An important relationship also exists between insects and micro-organisms in stored feedstuffs.
Total eradication of insect populations from tropical warehouses for feed ingredients is not possible. The degree of infestation can, however, be brought to manageable proportions through a programme of vigilance and effective control measures. Heavily infested ingredients should not be brought into the store. Infested material, if accepted, should be kept separate until fumigated (this is to be done as soon as possible) to totally eradicate the pests.
Good house-keeping involving the sweeping up of spilled material will check scavenger insects as well as rodents which may carry insects in their fur.