Abstract
Primary and secondary pests which have been found in barley stores and in maltings are listed, and the life histories of the more important pests (grain weevil, saw-toothed grain beetle, khapra beetle, and rust-red flour beetle) and the types of damage caused are described; an account is given of the modes of spread of infestation and of conditions which favour insect development. Preventive measures include regular inspection of grain and containers, hygiene and attention to details of bin structure and storage practice. Control methods may be mechanical (screening), physical (heating), or chemical, the last involving the use of insecticides (e.g., DDT, γ-BHC, pyrethrum) or fumigants (e.g., hydrocyanic acid, methyl bromide, carbon tetrachloride); precautions to be observed in the use of these materials are detailed.
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