Which one is a grain pest?

Of the five primary insect pests, the granary weevil, the rice weevil, the maize weevil, and the lesser grain borer may well be called grain weevils. The fifth primary pest, the Angoumois grain moth, so destructive to wheat and corn, may be called a grain moth.

What is grain pest?

Primary grain pests attack the whole grain. The eggs are laid outside the grain, before the larvae mature inside the grain and then chew their way out. Some of these pests include the Lesser grain borer, Granary weevil (Sitophilus granarius, the Wheat weevil) and Rice weevil (Sitophilus oryzae).

Which is the example of store grain pest?

The lesser grain borer (Figure 4) is a pest of a wide variety of grains. The larvae and adult of this pest are damaging. The larvae of this pest are unable to infest undamaged kernels. In addition to kernels, the larvae are also able to develop on grain meal.

Which is the most common insect pest on grains?

Eight common insect pests – Lesser grain borer

  • Rusty grain beetle.
  • Red flour beetle.
  • Confused flour beetle.
  • Sawtoothed grain beetle.
  • Granary weevil.
  • Rice weevil.
  • Yellow mealworm.
  • Lesser grain borer.

What are the 4 types of pests?

Pest Library

  • Ants.
  • Bees.
  • Beetles.
  • Birds.
  • Flies.
  • Mites.
  • Moths.
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How do you get rid of grain bugs?

Eliminate Grain Weevils

  1. Discard any infested foods. …
  2. Vacuum pantry shelves, cracks, and crevices.
  3. Wipe shelves with white vinegar.
  4. Dispose of garbage and vacuum bags outside, away from the home.
  5. Check regularly for reappearance — it may take awhile to get rid of them completely.

What are primary and secondary pests?

Grain insect pests may be divided into primary and secondary pests. Primary grain insects have the ability to attack whole, unbroken grains, while secondary pests attack only damaged grain, dust and milled products.

What are the common storage pest?

Primary insects

  • Rice Weevil. (Sitophilos oryzae (Linnaeus)) Click for more info. A female lays up to 150 eggs. …
  • Angoumois Grain Moth. (Sitatroga cerealella (Olivier)) Click for more info. The white larvae bore into the kernels and eat the inside. …
  • Lesser Grain Borer. (Rhyzopertha dominica (Fabricus) Click for more info.

How do grains become infested?

The primary causes of grain spoilage in Kentucky are excess moisture and high temperature. However, any grain improperly handled or stored longer than 6 months can be infested by insects.

How do you fumigate grains?

If aluminium phosphide is used, it is recommended that a tarpaulin or polyethylene sheet be placed carefully over the surface of the grain after the tablets are applied. The best way to apply a liquid fumigant to small storages is by spraying the surface from the outside of the building with the aid of a stirrup pump.

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