STORED GRAIN PESTS TNAU

Hii sir, I wants to get the Information About the Grain Storage Management of the Tamil Nadu Agriculture University ?

As you Asking for the Information About the Grain Storage Management of the Tamil Nadu Agriculture University the information is given below


Stored grains protection can be divided into two broad areas based on the type of intervention followed.

Preventive measures andCurative measures

I. Preventive measures

Sanitation and handling of grains

Remove dirt, debris, mud balls, foreign particles, insects and infested grains from healthy grains that will reduce insect infestation.

Proper handling of grains and avoiding hooks on storage bags help minimize exposure to insects

Bags should be stacked on wooden dunnage 0.5 metre away from the wall

Bags should be stacked in rows having space of nearly 2 to 3 metre in-between height of a row should not be more than 15 bags leaving about 1/5thspace of total storage from the roof.

Likewise bulk storage structures should also be kept away from the ventilators or doors
Drying of grains Grains are harvested at a moisture content ranging from 20-28%
Moisture content should be brought to 12-13 percent

Sun drying and use of mechanical dryers can be opted to bring down moisture.
Improper drying of paddy grains during post harvest operations not only enhances the insect infestation but also enhances breakage during milling.

Staggered sun drying with short exposure to sun spread over large number of days (9-11 am for 8 days) reduces insect infestation.

Use of improved storage structures Gunny bags or jute bags with close weaves can reduce insect infestation.

Dis-infestation of stores/receptacles

Treatment of bulk and bag storage structures with insecticides is an important practice to avoid latent infestation in reused bags and bulk storage structure.

The insecticides commonly recommended are malathion and dichlorvos.
Legal method In India, the Destructive insects and Pests Act started in 1914.

Plant Quarantine Order 2003, govern the regulation or restriction of movement of insects through commodities into the country and among different areas within the country.
Grains or other commodities are thoroughly checked and treated at ports to avoid entry of insects.

II. Curative measures Physical control measures

1. Use of low and high Temperatures The insects can be controlled either by increasing or decreasing storage temperature.

Optimal temperature for most of the storage insects is between 25 and 33o C.

Temperatures between 13 and 25o C will slow development.

High temperatures of 35o C and above will stop development.

Refrigerated aeration of grains stored in bins gave results on par with insecticide treatment in Australia

USA and Israel in controlling storage pests (Navarro and Calderon, 1982).
High temperature disinfestations using heated air grain driers, fluidized beds, spouted beds, pneumatic conveyors, a counter flow heat exchanger, high frequency waves microwaves, infra red waves and solar radiations have been satisfactorily used for in disinfesting grains.


For Any Query you may Contact to the Tamil Nadu Agriculture University the Contact details Are given below


Contact details :

Tamil Nadu
Agricultural University,
Lawley Road,
Coimbatore 641003
+91 422 6611200

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