Sorption of Single- and Multiple-Component Fumigants by Whole-Kernel Corn under Recirculation, and Correlated Mortality of Stored-Product Insects1

Abstract

Gas chromatography was used to determine the concentrations of acrylonitrile, carbon disulfide, carbon tetrachloride, chloropicrin, ethylene dibromide, ethylene dichloride, hydrocyanic acid, methyl bromide, and of fumigant mixtures (on a volume basis) of acrylonitrile-carbon tetrachloride (25–75), carbon disulfide-carbon tetrachloride (20–80), ethylene dichloridecarbon tetrachloride (75–25), and carbon tetrachloride-ethylene dichloride-ethylene dibromide (60–35-5), under conditions of no load and of a load of corn (whole-kernel grade No. 2 yellow) under recirculation of fumigant. Mortality of adults of Tribolium confusum Duv. and Sitopkilus oryza (L.) are included.