Pests of Stored Grain and Grain Products

Angoumois Angoumois grain moth applied atmospheric vaults bags bins breed building bushels calcium cyanide canister carbon dioxide carbon disulphide carbon tetrachloride cent chemicals chloropicrin clean concentration confused flour beetle containing conveyers corn Cotton cubic feet cylinder damage dosage dust Econ effect elevator boots equipped ethylene oxide exposure feed feet of space Figure floor flour mills fumi fumigant gant gas mask gases grain beetle grain stream granary weevil heat hydrocyanic acid illus inch Indian meal moth insect infestation insect pests insecticidal Jour kernels khapra beetle kill larvae lesser grain borer liquid hydrocyanic acid machinery meal worm method methyl bromide milled cereal products milling units mixture moisture content oxygen pests of stored pipe pounds pressure protection pyrethrins rats removed rice weevil rodent seed sifter species storage stored grain tank temperature tion toxic Tribolium confusum U. S. Dept U.S.D.A. Photo vacuum vapors warehouses wheat