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Table of Contents
Introduction
  Home
  1. List of Acronyms
  2. List of Cooperating Sponsors
  3. Conversion Tables
  Part One
  Section I:
  Commodities
  1. Commodity Availability
  2. Commodity Characteristics
  3. References
  Section II:
  Food Commodity
  Fact Sheets

  1. Beans, Black
  2. Beans, Great Northern
  3. Beans, Kidney (Light Red, Dark Red, All types)
  4. Beans, Navy (Pea Beans)
  5. Beans, Pink
  6. Beans, Pinto
  7. Beans, Small Red
  8. Bulgur (BW)
  9. Bulgur, Soy Fortified (SFBW)
  10. Corn (bagged, bulk)
  11. Cornmeal
  12. Cornmeal, Soy-Fortified (CMSF)
  13. Corn Soy Blend (CSB)
  14. Corn Soy Milk (CSM)
  15. Corn Soy Milk, Instant (ICSM)
  16. Lentils
  17. Non Fat Dry Milk (NFDM)
  18. Peas
  19. Rice
  20. Rice (Parboiled)
  21. Sorghum
  22. Sorghum Grits, Soy-Fortified (SFSG)
  23. Fortified Refined Vegetable Oil
  24. Wheat
  25. Wheat Flour
  26. Wheat Soy Blend (WSB)
  27. Wheat Soy Milk (WSM)
  Section III:
  Storage/Shelflife
  Specifications

  1. Storage Specifications
  2. Storage Inspection Checklist
  3. Shelf Life of Agricultural Commodities
  4. References
  Section IV:
  Controlling
  Damage to Food
  Commodities

  1. Cleaning and Inspecting
  2. Insect Control
  3. Rodent Control
  4. Reference Chart for Controlling Damage to Food Commodities
  5. References
Part Two
An Overview
Part Three

Search



Section IV:
Controlling Damage to Food Commodities

Commodity Reference Guide Logo

Updated January 2006


I. CLEANING AND INSPECTING
If sound storage procedures for commodities, as addressed in the following chapter, are followed, insect and rodent problems will be minimal. The problems can be further controlled with a program of cleaning and inspecting.

The program should include (1) closing or removing open food containers, (2) repairing damaged packages, (3) removing and disposing food unfit for human consumption, and (4) inspecting and cleaning the storage area regularly according to a planned, scheduled program.

Area to be inspected: Inspect for:
Outside the warehouse Cleanliness
Condition of roof, walls and windowsSecurity--fences, guards, locked doors and windows
Inside the warehouse Condition and cleanliness of ceilings, floors and walls
Adequate ventilation
Placement of rodent baits / traps
Presence of hazardous substances such as chemicals and pesticides
Presence of fire extinguishing equipment, dates not expired
Food storage area Distance between stacks, and between stacks and walls
Interlaced or bonded stacksUse of pallets free of exposed nails or wooden splinters which may tear bags
Segregation of damaged food
Insect infestations -visual and sounds
Rodent or bird infestations
Stale food which has been stored too long
Leaking, stained or discolored containers, bulging or rusting cans and
caking of food within bags
Germination of grain in sacksShort-weight containers
Warehouse office area Cleanliness
Adequate shelving
Adequate lighting
Condition of office equipment

II. INSECT CONTROL

A. FUMIGATION
In all cases, READ THE MANUFACTURER'S LABEL BEFORE USING FUMIGANTS. Due to the extreme toxicity of fumigants, the utmost caution must be taken during their handling and administration.

Fumigation is the use of a gas to kill insects and rodents. The purpose of fumigation is to destroy all stages of insects present in the material to be treated. An atmosphere that is toxic to insects will also kill rodents or other forms of animal life. Fumigation, will not eliminate mold or bacteria. Because there is no residual kill, insects or rodents may recontaminate the commodity immediately after fumigation. In order to protect stored foods a great emphasis must be placed on cleaning when sprays and fogs are used to eliminate insects.

To conduct an effective and safe fumigation, certain conditions must be met, including, but not limited to the following:

  • appropriate temperature
  • proper use of tarpaulins and sealing technique
  • proper dosage and time exposure
  • monitoring for presence of fumigants
  • safety precautions
  • inspection and follow-up
B. INSECTICIDES (Other than Fumigants)
Again, READ THE MANUFACTURER'S LABEL BEFORB USING INSECTICIDES. Insecticides are useful tools when used with stack rotation and thorough cleaning. Nothing takes the place of cleanliness. Sprays.
Insecticide sprays are applied to surfaces and will leave a residue that continues to kill insects that contact it. Be careful not to spray on product. Effective life of the residue depends on many things, including type of insecticide, surface to which it is applied, temperature, and humidity.

Fogs and Mists.
Insecticide fogs and mists move through the air to reach insects that may not be reached by contact sprays. They are especially effective against flying insects and insects that cannot be reached with contact sprays (for example, on surfaces of bags containing food). Close all doors and openings in the warehouse to prevent escape of the fog or mist. Read and follow manufacturer’s label instructions. III. RODENT CONTROL

The primary method of rodent control is cleaning to eliminate harborage and food in the warehouse and around the storage area. Remove debris, weeds, trash, and food outside. Keep the inside of the warehouse clean of all food, especially containers of food unfit for human consumption and awaiting disposal. Remove or repair torn and broken packages. Openings into storage buildings should be protected against rodents with screen having openings not larger than 6.35 mm. Doors must fit tightly and they must be kept closed when not in use. Bait Stations
To help control rodents, exterior bait stations containing fresh anti-coagulant poison should be maintained around the periphery of the grounds, 100 feet apart and around the exterior of the building, 50 feet apart. Bait stations must be checked frequently, (at least twice monthly) so that the bait does not become wet, moldy, or infested with insects.

Tracking Powder
Tracking powder can be used in limited areas (not where it could contaminate food) where a mouse problem is suspected.

Snap Traps
Snap Traps can be used; however, they must be given daily attention to be effective.

Glue Boards
These are useful against mice. They can be distributed among the stacks of food where mice become entangled with the glue and cannot escape. Glue boards must be inspected frequently, to be certain that they are fresh and effective. To increase effectiveness, place under a box with openings at each end (to create a tunnel), to protect from dust and to offer shelter to rodents.

Multiple-Catch Traps
These traps are for interior use and can hold up to 30 mice. Some require winding; all require weekly inspection.

IV. Reference Chart for Controlling Damage to Food Commodities

Type of damage
Evidence of damage
Methods of control
Action necessary
Short-weight containers Bags appear slack.

Containers are not as heavy as normal when lifted.

Weighing a random sample of bags and containers indicates short-weight.

If bulk shipments, increase vigilance of bagging operation at port.

Increase security in storage areas and during transport.

Repackage or assign a new weight to the containers.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Leaking, broken or torn bags or containers Spilled food in transport vehicle.

Food spills from containers during unloading.

Bags are torn and containers are dented or crumpled.

Handle properly--do not throw, stack too high or use hooks

Contact donor if packaging material/container appears inadequate.

Repackage food fit for human consumption. Inspect sweepings and either reconstitute or dispose of sweepings declared unfit for human consumption.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Wet, stained or moldy bags or containers Containers are wet to the touch or dripping.

Containers are discolored

Unusual smell (moldy or chemical)

Caking of food.

Ship in waterproof holds or in adequately sealed cargo containers.

Keep under cover when stored outside.

Transport using tarpaulins.

Insure adequate air circulation.

Do not store past expiration date on container.

Inspect and reconstitute food fit for human consumption; dispose of food declared unfit for human consumption. Food dampened by rain may be dried and reconstituted.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Bulging or rusted tins Rust on outside of container, especially near seams and lids.

Shape of container is bulging and distorted.

Do not store in direct sunlight

Do not store past expiration date on container or longer than four months.

Inspect and reconstitute food fit for human consumption; dispose of food declared unfit for human consumption.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Rodent or bird infestation Rodents or birds in the warehouse

Excrement on the floor or stacks

Gnawed bags or containers

Footprints in dust

Nests

Cleanliness and maintenance are critical to preventing infestations. Keep both the outside and the inside of the storage facility clean and free of debris. Close holes or openings in walls, floors and ceilings. If possible place screens over windows and ventilation openings.

Cats are effective in controlling rodents.

Traps can be set along the interior walls of the warehouse, at each side of every outside door, and in rafters. Insure that no poisons or traps are accessible to the cats.

Inspect and reconstitute food fit for human consumption; dispose of food declared unfit for human consumption.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Insect or moth infestation Flying insects

Live or dead insects or larvae on the floor

Traces of insects or larva in dust

Grain bags have small holes and excessive dust

Noise heard inside the bag

Irregular holes in the grain or beans

Strong odor

Cleanliness is critical to prevent insect infestations. Keep both the outside and the inside of the storage facility clean and free of dust and debris. Inspect and fumigate; dispose of food declared unfit for human consumption.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.

Seepings Loose food from slack or torn bags on warehouse floors

Loose food on warehouse floors after reconstitution

Keep bags of food from being handled roughly or moved too many times.

Instruct laborers to avoid as much spillage as possible during the reconstitution of food.

Frequently sweep floors to keep them clean.

Reconstitute all food that may be fit for human consumption.

Determine if sweepings are unfit.

Prepare Loss and Adjustment Reports and enter transactions on stack cards and in warehouse inventory ledgers.


V. References CARE. Food Resources Manual. 1998. Food Aid Management Website: http://www.foodaid.org// Commodity Management Page.

Bibliography available at FAM.

USAID. Environmental Documentation Manual – For P.L. 480 Title II Cooperation Sponsors Implementing Food-Aided Development Programs (Final Draft). Reprinted April 1998.

USAID. A Field Guide to USAID Environmental Compliance Procedures, based on the USAID Environmental Manual for P.L. 480 Title II Food for Development Programs. March 5, 1998.


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Tue, 31 Jan 2006 14:29:46 -0500
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