SPP FOUR GROUPS

are insect larvae that feed entirely
within the kernels of whole grain and palletized
product, and thus may remain undetected
until adults emerge from the kernels.

Internal feeders. External feeders. Scavengers. Secondary pests.

Examples
include the rice (black) weevil, granary weevil,
lesser grain borer and Angoumois grain moth.

Internal feeders. External feeders. Scavengers. Secondary pests.

feed on the outside of the grain.
They may also chew through the outer seed
coat and devour the inside.

Internal feeders. External feeders. Scavengers. Secondary pests.

Examples include
the Indianmeal moth, drugstore beetle, flat
grain beetle, cadelle, khapra beetle and cigarette
(tobacco) beetle.

Internal feeders. External feeders. Scavengers. Secondary pests.

feed on grain only after the seed coat
has been broken, either mechanically or by some
other insect.

Internal feeders. External feeders. Scavengers. Secondary pests.

Examples include the confused
flour beetle, red flour beetle, Mediterranean flour
moth and sawtoothed grain beetle.

Internal feeders. External feeders. Scavengers. Secondary pests.

pests feed only on materials that are
deteriorating, damp and have some mold growth
present. Some of them feed on mold rather than
the food product.

Internal feeders. External feeders. Scavengers. Secondary pests.

Examples include yellow
mealworm, foreign grain beetle, some grain
mites and psocids.

Internal feeders. External feeders. Scavengers. Secondary pests.