Storage Pests

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Pest | Description | Crops/Host | Management | Image
Rice Weevil (Sitophilus oryzae) | Distinct snout , -3mm long adult, Reddish brown with four red to yellow spots on elytra & can fly, Small round pits on thorax. | Rice, Maize, Wheat, Barley, Sorghum |Store only clean, dry grain with MC of <12%., Proper sanitation of storage room or bin, Fumigation & heating grains to 60⁰ C.  |

Maize weevil (Sitophilus zeamais) | Distinct snout, Slightly larger than rice weevil, Reddish brown with four red to yellow spots on elytra & can fly. Thorax densely pitted with irregular punctures. | Rice,   Maize, Wheat, Barley, Sorghum. | Store only clean, dry grain with MC of <12%., Proper sanitation of storage room or bin, Fumigation & heating grains to 60⁰ C. |  

Lesser grain borer | Adults are dark reddish brown and 3 mm long with distinctly shaped, loose 3-segmented club. Larvae are white and c-shaped. They are immobile at maturity with dark head capsule. | Wheat, barley, sorghum and rice. | Store only clean, dry grain with MC of <12%. Proper sanitation of storage room or bin. Fumigation & heating grains to 6′ C. |

Rodents. Three species: House rat, Norwegian rat, House mouse. |Sharp incisors use for gnawing the food/ grains. | Rice, maize, peas, beans etc. | Rat proofing by check the movement of rats, trapping, Poisoning or baiting with rodenticides, Fumigation & sanitation, Most nocturnal. |

Bean beetle (Callosobruchus masculates | Adult weevil of 1/8^th inch, reddish brown.Wing covers (elytra) marked with black & grey color with two black spots in middle. | Beans, cowpea, peas, Mung bean, soybean. | Store only clean, dry grain with MC of <12%. Fumigations with Aluminum phosphate. |

Angoumois Grain Moth (Sitotroga cerealella | Adult small buff to yellowish-brown moth with 10-12mm wing span. Narrow pointed wings fringed with long hair. | Wheat, barley, corn, rice, sorghum, millet. | Proper sanitation and crib preparation prior new grain storage. |

Rust- Red flour  Beetle (Tribolium castaneum) | Small beetle (1/4 inch long) but may live more than 3 years. Are reddish brown in color & its antennae end in 3 segmented club. | Broken grains and grain products (flour, cereals, beans, spices, pasta, nuts, seeds) | Store only clean, dry grain with MC of <12%. Fumigations with Aluminum phosphate. | [/table]