Minimum Life Cycle: 28 days.
Distribution: Tropical grains (e.g., maize, paddy, sorghum); commonly attacks before harvest.
Eggs - 40 to 150 eggs laid on grain surface.
Larvae - Bore into grain, staying until pupation.
Pupae - Form in grain.
Adults - Non feeding; short lived.
Angoumois Grain Moth (Sitrotroga cerealella). The Angoumois grain moth is a former pest of crib stored corn and can infest grain in the field. Modern harvesting and storage procedures have reduced problems with the insect. The moth is sensitive to low temperatures and is not common in the northern section of the United States. The adult moths do not feed (Figure 6).
(Slide and top caption courtesy of ICI Americas, Inc.)