PESTS OF STORED PRODUCT

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PESTS OF STORED PRODUCT
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Sitophilus oryzae (bubuk/kutu beras/rice weevil)
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• Symptoms of damage
• Both grub and adults cause the damage.
• Grains are hollowed out kernels are reduced to
  mere powder. S. oryzae starts its attack in field
  itself.
• Adults cut circular holes. Heating takes place
  during heavy infestation, which is known as dry
  heating.

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• Female deposit eggs inside grains (chew grains
  and make holes)

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Tribolium castaneum
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• Secondary storage pests
• Damage broken or damaged grains(bijirin)
• If its in flour(Tepung), the flour will become
  dan bergintil-gintil

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Control for both species

• Sanitation uninfested grains should not be
  placed in sacks previously used in grain storage
  unless been sterilized by heat or fumigation
• Regular fogging/aerosol spray with pyrethrum (for
  beetles)
• Fumigation with methyl bromide or ethylene
  dibromide or carbon tetrachloride
• Tablet or pellet form of aluminium phosphide can
  be applied to bags or bulk grain during loading