Black carpet beetle
Attagenus unicolor (Braham)
Secondary pest: Grain feeder and scavenger
- Adults are uniformly dark brown to black with dark or gold brown hairs.
- Adults fly, are 2.8 to 3.0 mm long and are short lived.
- Larvae are reddish-brown in color reaching a length of 6 to 8 mm.
- Larvae have a tuft of brown hairs at the posterior end.
- Alphitobius species
- Dermestes species
- Trogoderma species
- Feeds on dried plant and animal material
- Can feed on household items including wool articles, some synthetic fibres, cereal products and dried pet food
- Also feeds on barley, peanuts, bran, ground maize, alfalfa meal,
- May be a pest in museums, attacking hides, furs, nsect specimens, wool articles, oilseeds
Signs of infestation
- Holes in commodity
- Contamination with cast larval skins
- Damages products by feeding and burrowing in material
How to control
- Is distributed worldwide and found across Canada
- Found in grain storage in grain dust, debris and spilled grain
- Beetle can overwinter as either an adult or in the larval stage.
- Developmental temperature ranges from 2° to 25°C.
- Larvae can enter diapause (a dormant state during which development slows or stops) if developmental conditions are unsuitable (low temperatures, short day length, low population densities).
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