Khapra beetle

The Khapra beetle (Trogoderma granarium) is a notorious pest known for its destructive impact on stored grains and other dried food products. Originally native to the Indian subcontinent, this beetle has spread globally, becoming a significant concern for agricultural and food storage industries.

Identification and Characteristics

• Appearance: The adult Khapra beetle is a small, reddish-brown insect measuring about 2.5-3.5 mm in length. It has a distinctive elongated, oval shape and a hard, smooth exoskeleton. The larvae are more problematic, as they are reddish-brown with a distinct wrinkled appearance and can be up to 7 mm long.

• Life Cycle: The life cycle of the Khapra beetle includes four stages: egg, larva, pupa, and adult. Females lay eggs in crevices and hidden areas, and larvae hatch and feed on stored products. This beetle's life cycle can complete in as little as 30 days under optimal conditions, leading to rapid population growth.

Damage and Impact

• Food Products: Khapra beetles primarily infest stored grains like wheat, rice, barley, and oats, but they can also damage other dried products such as pulses, seeds, and even dried fruits. The larvae are the most damaging stage, feeding on the grain and causing significant contamination.

• Economic Impact: The infestation of Khapra beetles can lead to substantial economic losses. Not only do they cause direct damage to stored products, but their presence can lead to contamination that renders the food unfit for consumption. This results in financial losses for farmers, traders, and consumers.