Pest Control Eco-Friendly and Synthetic Chemical
Solutions Distributor
Stored Product Pest
Overview
Stored product pests infest grains, flour, cereals, nuts, and other dried foods. They reduce quality, cause losses, and contaminate food.
Common species:
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Rice Weevil (Sitophilus oryzae) – attacks rice and cereals
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Lesser Grain Borer (Rhyzopertha dominica) – penetrates stored grains
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Angoumois Grain Moth (Sitotroga cerealella) – larvae feed inside grains
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Red / Confused Flour Beetle (Tribolium castaneum / confusum) – infests flour, cereals, dried foods
Biology
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Egg → Larva → Pupa → Adult
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Life cycle depends on temperature and food availability
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Can survive months without fresh food
Signs of Infestation
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Small holes in grains or packaged foods
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Fine powder or frass (insect droppings)
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Live insects in stored food
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Unpleasant odor in infested food
Behaviour
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Feed on stored grains and dried foods
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Lay eggs inside grains or on surface
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Larvae develop inside grains → difficult to detect early
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Highly prolific; infestations can grow rapidly
Where They Hide
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Rice Weevil: Inside grains and rice bags; larvae develop inside kernels
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Lesser Grain Borer: Grain silos and cereal kernels; bore into grains
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Angoumois Grain Moth: Grains and cereals; larvae feed inside kernels
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Flour Beetles: Flour, cereals, packaged dried foods; feed on surface and contaminate food
Risk & Impact
How to Control
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Food contamination → unsellable or unsafe products
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Economic losses for warehouses, mills, and retailers
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Can spread quickly if storage hygiene is poor
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Inspect and rotate stock regularly
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Maintain proper storage hygiene
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Apply insecticide treatments in storage areas or around bins
Recommended Solutions
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Residual insecticide for storage areas
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Fumigation for severe infestation (licensed personnel only)
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Regular monitoring for early detection
Common Mistakes
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Ignoring early signs of infestation
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Treating only visible pests without inspecting the stock
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Poor storage hygiene or uncovered containers