Pest Control UK

Grain Weevils

Sitophilus granarius

Appearance

• Adult — 2–3mm in length. Oval indentations in thorax. Black-brown colour. Cannot fly (fused elytra). Rostrum (snout).
• Larva — usually hidden within grain where it pupates. Legless. Prefers wheat and rye but will infest other cereals.

Lifecycle

• 30 days at 30°C. Normally 8–16 weeks. Can develop at 11°C.

Habits

• A pest of grain. Newly emerged adults leave a characteristic emergence hole in the grain.

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2006 – 2007 – 2008

Grain Weevil Pest Control Companies