Our Services

   

General Disinfestation/vector control.

Prophylactic/Surface Treatment.

Curative Treatment (Fumigation)

Termite Treatment.

Wood Borer Treatment.

Rodent Control.

Commercial Pest Management.

Weed Control

Birds Control.

Honey Bee Control.

Evaporation Control.

Sterilization Treatment

Tank Cleaning

Landscaping

Dairy/Poultry pest Management

Consultancy in warehousing.

   

Fumigation

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Fumigation is generally defined as a chemical treatment in which the chemical can exist in a gaseous state in sufficient concentration to be lethal to a given pest organism at a required temperature and pressure. Fumigant may be applied as gas (Hydrogen Cyanide and Methyl Bromide), as a solid which will evolves as gas (Aluminum phosphide and Magnesium phosphide) hydrogen phosphide i.e. Phosphine or as liquid (Ethylene-di bromide carbon tetra chloride).

The earliest use of fumigation dates back to about 1000 years B.C. when “Sulfur Fumes” were used to disinfect ancient homes. However, it was only in 1854 that the use of carbon – di – sulphide and hydrogen cyanide for disinfestations was acknowledged. The advent of there chemicals gave rise to the modern concept of fumigation. To date fumigation offers one of the most effective control measures against varieties of stored product pests specially the internal feeders.

 

Thus fumigation as a control technique may be described as the establishment of an atmosphere containing a Lethal concentration in the environment of an insect, with concentration high enough and an exposure period long enough to kill the insect.

 

Present Status of fumigation – It was only about 30 years ago that fumigation, mostly with methyl bromide, or ethylene dichloride or carbon tetrachloride, began to be carried out in the developing countries. The introduction of phosphine generated by exposing solid formulations containing aluminum or magnesium phosphide to atmosphere has greatly simplified the application techniques so enabling fumigation to be used more readily.

 

All fumigants used for fumigation are highly toxic and hazardous in nature, as such they are classified as Restricted use pesticides by the EPA (Environmental Protection Agency). This means that they should only be applied by or under the direct supervision of trained and certified fumigation operator.

Personal - A basic requirement is that sufficient personnel trained to fumigation are available to carry out all necessary operations.

All fumigation operations should be carried out in the presence of certified and approved fumigation operator by Plant Protection Advisor, Faridabad only.

 

Advantage of fumigation –

   

Fumigants are usually quick acting and an result in total control of pest.

Fumigant can control all stages of pests i.e. eggs, larvae, pupae and adults.

Fumigants being gases, they diffuse through all parts of the structure or commodity and can reach pests that could not be reached with conventional pest control materials or techniques.

For certain commodities, fumigation is the only practical way is control pests.

Fumigation has no adverse effect on germination quality of seeds except Methyl bromide.

 

Factors which influence fumigation– Sorption, Temperature, Grain moisture, Grain type and condition, nature and intensity of infestation, storage facility, air movement and dosage and exposure period.

Fumigation methods – 

   

Vaults fumigation

Structural (Building) fumigation

Vacuum fumigation

Tarpaulin fumigation

Godown fumigation

Outdoor fumigation

Ship fumigation

Container fumigation

Flour Mill fumigation

Air craft fumigation

Spot fumigation

Fumigation of Loose grains:

 

When and when not to use phosphine as a fumigant –

Phosphine is the fumigant of choice –

   

When a commodity is required in not less than 5 days

When khapra beetle is present and use of MBr is not mandatory.

When oilseeds, expeller cake, and meals must be treated.

Where germination is important.

Where commodities have been treated previously with MBr.

Where tent may be a problem if MBr is used.

 

Phosphine should not be used –

   

Where resistance is known to exist in an insect population.

Where proper seating is not possible / unsealed enclosures.

At temperature below 15oC

Where rapid treatment is required (less than 5 days)

Where there is no trained and qualified team.

Areas immediately adjacent to work space and habitations.

Where it reacts and leaves stains.

Phasing out of Methyl bromide – The montreal protocol on the substance that deplete the ozone layer is a global agreement intended to protect the ozone layer by reducing the production of ozone depleting substances. Developed countries that are the signatory to the Montreal protocol, this includes Canada and the United Sate must completely phase out the consumption of  Methyl bromide by the year 2005.

 

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