ID Stored Wheat Insects

  • over 1/3 inch
  • beetle-like
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    Cadelle

    Description:
    The adults are 1/3 inch long, black in color, flattened and have a constricted waist. Larvae have black heads, two horny projections at the end of the abdomen and are 3/4 inch long.

    Damage:
    Both larvae and adults feed on the germ. Larvae often migrate from grain to pupate in wood holes or other materials. This insect is less of a pest then it used to be, because of the switch from wooden to metal or concrete storage structures.
    Cadelle

    Mealworms

    Description:
    The adults of both species are 0.5 inch long. Yellow meal worm adults are a shiny brownish-black. Dark meal worm adults are a dull black. Mature larvae are 1.25 inch long. Larvae pupate near the surface of the grain.

    Damage:
    The direct damage is limited to deteriorating grain. The presence of this insect may indicate heating, spoiling or grain that is not in good condition.
    Mealworms