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  • Granary Weevil Beetles

    Granary Weevil
  • Granary Weevil
  • Granary Weevil
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Elimination

In the majority of cases where there are food insects, the important thing is to locate and eliminate breeding grounds. Anything that has not been attacked by these insects should be kept in tightly sealed containers. As pet food can also be attacked by these insects, it will require great attention.

Next, it is advisable to vacuum the cracks and crevices in the pantry to remove any seeds or insects that may be present. To avoid a second infestation, the contents of the vacuum must be emptied into the bin, as the multiplication of insects could still continue there.

Finally, if the situation persists, the intervention of our certified technicians remains a safe and effective solution. An intervention implies that the treated surfaces should not be washed for about a month in order to allow the product to work effectively.

Before any intervention, all equipment must be removed from the pantry. Subsequently, it is strongly suggested to place sheets of paper on the shelves before replacing the food in order to prevent the containers from coming into contact with treated surfaces.

Actions

  • Put all food in sealed containers
  • Vacuum pantries and under appliances (empty receptacle/dispose of bag)
  • Request assistance from one of our pest management experts

Prevention

  • Store food in sealed containers

Description and development

The granary weevil is a beetle belonging to the Curculionidae family. Insects in this family are easily recognized by their rostrum (a trumpet-like stiff projection on the head). The granary weevil (Sitophilus granarius ) is brownish-red to dark brown in color. They measure 3 to 4 mm long on average.
An adult female can lay 150 to 300 eggs, placing each one in a hole bored in a grain kernel. Then she secretes a gelatinous substance to seal up the hole, making it difficult to detect the egg. The apodal (footless) larva develops in the grain and the adult emerges after the pupa (cocoon) stage. The life cycle takes 28 to 42 days—the higher the moisture level, the faster the life cycle. The adult lives 7 to 8 months, depending on environmental conditions.

Habits

Granary weevils will attack almost any grain, including rice, corn, barley, rye, buckwheat, and wheat. It is also not unusual to find them in pasta, flour, and other stored dry foodstuffs. Unlike rice weevils, adult granary weevils do not fly.

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