The Angoumois Grain Moth, Sitotroga cerealella, and Storage Fungi1

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Abstract
Storage fungi, principally Aspergillus amstelodami, A. repens, and A. ruber, in the A. glaucus group, were consistently isolated from nonsurface-disinfected and surface-disinfected larvae, pupae, and adults of the Angoumois grain moth, Sitotroga cerealella (Olivier), and from the alimentary tract of larvae; excreta of the insect contained up to almost a billion spores of these fungi per gram. Adult moths were introduced into almost moldfreegrain conditioned to moisture contents of 10.5% to 15.2%; as the insects multiplied the moisture content of the grain increased (as much as 5% in 3 months) and the population of the fungi increased greatly. Adult moths were attracted to air passed through moldy grain in preference to air passed through clean grain or to air alone, and preferred grain invaded by members of the A. glaucus group to clean grain.

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