Primary Stored Grain Pest

Primary grain pests attack the whole grains and breed in previously undamaged commodities. They do not attack milled or ground foodstuff. They are more destructive than secondary pests.

Caryedon serratus
(Ground Nut Burchid)
Damages:

Ground Nut, Tamarind & Legumes

Callosobruchus chinensis
(Pulse beetle)
Damages:

Pulses, Beans & Grams

Callosobruchus maculatus
(Cowpea Weevil)
Damages:

Pulses, Beans & Grams

Lasioderma sericorne
(Cigarette beetle)
Damages:

Wheat Flour, Cereal Bran, Peanuts, Cocoa beans, Cotton Seed, Spices & chiilies

Rhyzopertha dominica
(Lesser grain borer)
Damages:

Paddy, Rice, Wheat & Maize

Sitophilus granarius
(Granary weevil)
Damages:

Paddy, Rice, Wheat & Maize

Sitophilus oryzae
(Rice weevil)
Damages:

Paddy, Rice, Wheat & Maize

Sitophilus zeamais
(Maize weevil)
Damages:

Paddy, Rice, Wheat & Maize

Sitotroga cerealell
(Angoumois grain moth)
Damages:

Paddy, Rice, Wheat & Maize

Stegobium paniceum
(Drug store beetle)
Damages:

Turmeric, Coriander & Dry Vegetable

Trogoderma granarium
(Khapra beetle)
Damages:

Rice, Wheat, Maize, Oil seeds & Oil Cakes

Secondary Stored Grain Pest

They attack only materials that have been previously damaged either by primary pests or by poor handling and storage. They also attack processed items like flour or milled rice.

Ephestia cautella
(Almond moth)
Damages:

Grains, Cereals, Millets and Milled Products

Corcyra cephalonica
(Rice moth)
Damages:

Rice, Jowar, Millets, Whole Cereals, Cereal Products, Pulses, Oil Seeds, Nuts, Dry Fruits and Milled Spices

Latheticus oryzae
(Long headed flour beetle)
Damages:

Grains and Milled Products

Oryzaephilus surinamensis
(Saw toothed grain beetle)
Damages:

Rice, Wheat, Maize, Ceareal Products, Oil Seeds and Dry Fruits

Tribolium castaneum
(red flour beetle)
Damages:

Grains and Milled Products

Plodia interpunctella
(Indian meal moth)
Damages:

Maize, Cereals, Dry Fruits, Ground Nuts and Cereal Products

Tribolium confusum
(Confused flour beetle)
Damages:

Grains, Cereals, Millets and Milled Products