This research work was carried out on the development of aerosol
insecticide using local raw material. This was made possible through careful
and through review of some organic substances to obtain their various
properties and characteristic under various conditions. The following promised
to be active in the formulation of a biodegradable aerosol insecticide which is
non toxic and capable of blocking the respiratory ‘mechanics’ of target
insects, especially, the mouth sucking insects. The chemical substances are
classified according to their sources. They are as follows:-
(A) The nature local organic compounds;’ they are
refenone (an extract from lonchoearpus nunits or annun) citronellal (an
extract from lemon grass) piperinal (a synergist) and solvents for extraction.
(B) The synthetic local organic compounds; they are
DDVP (Dichloro- dimetty , vinyl phosphate, allethrich. Piperinal, simple
paraffin, benzaldehyde and perfume.
In the formulation and production of these insecticides, some chemical
process were involved such as pulverization (grind), folteration, extraction
heating, stiring etc for the purpose of formulation different standard ratios
were used. For instance, for natural local organic compound insecticide, the
formulation was 60% by volume of rotenone, 30% by volume of citronellal and 10%
by volume of the synergist (ie piperinal) and annyl alcohol. For the synthhetic
one, the formulation was 0.5% by volume of DDVP, 0.45% by volume of allethrin,
0.35% by volume, 95% by volume of simple paraffin and 3.7% by volume of mixture
of benzaldehyde and perfume.
products, they were found to be effective when tested. But it was found that
the insecticide from synthetic raw materials had better efficiency than
the one from natural raw materials.
further test and observation, it was found that the insecticides has little or
no effect on the environment.
the products were stored in a pressurized spray cans for use. Recommendation
were made on the proper management of the insects and also conclusions were
drawn to that effect.
are agents, or preparation for destroying insects and related animals by
disruption of vital processes through chemical action. To be more precise,
insecticides are materials used for the metigation, control or elimination of
insects or animals that are detrimental to human health and economy.
discoveries of new synthetic insecticides led to major advances in insecticide
technology. Coupled with development in aerosol biophysics, highly active
chemicals can now be effectively applied to target species to give maximum
control of insect peste. Armed with these techniques man is able to subdue and
control pest of agricultural, veterinary and public health importance.
scientist have developed a range of insecticides formulations, each
specifically designed to combat insect pest affecting man’s health, livestock
or economy with maximum safety and efficiency.
insecticides may be of organic or inorganic origin. Also they possess different
methods of action and could be classified according to these different methods
of action such as stomach poisoning, contact poisoning, residual poisoning,
system poisoning, fumigants, repellants or attractants. Contact poison
insecticides, being the one of most interest, kill following external bodily
The design of an aerosol insecticide should depend on the nature
of the target organism. it is possible to design a “general insect” killing
aerosol but such product are by their very nature a compromise, and are thus
inferior to products specially formulated for use against specific targets.
Certain formulations which are extremely effective against flying insects may
give poor control of crewing insects and, conversely, crawling insect killing
aerosols may have little action against flying insect. Aerosol insecticides
used against flying insect are specifically formulated to induce immediate
paralysis and knockdown of flies, mosquitoes and wasp ect. Knockdown follows
from the paralytic action of an insecticide christened on insect muscles
responsible for flight. These insecticides may be applied as a spray if liquid
or in suspension, as a dust or as a gas.
qualities and performance of aerosol insecticides are largely dependent on the
properties of its constitutuents and the ratio of these constitutuents in the
final products. Records shows that insecticides were used as long as 1000 B.C.
However, they were more often useless than useful since they were based
on legend and superstition rather than on scientific knowledge. The essential
property of early insecticides was a disagreeable or dour rather than the toxic
or poisonous nature.
insecticides from available local raw materials must meet the present need for
a high standard of performance so as to cater satisfactorily for the needs of
the society. Besides, the insecticides produced should conform to be amendments
in the federal insecticide, fungicides and Rodenticide Act of 1972 and that of
the federal environmental protection Agency Act of 1994. The overview of the
conformity to the Acts is that the insecticides produced should be effective
and environmental friendly.
of this work is to seek alternative local inputs for the development,
formulation and production of aerosol insecticide, as well as testing of the
complete aerosol insecticide that will effectively complete with other aerosol
insecticides made from imported raw materials or synthetic raw materials.
TERMS AND CONDITIONS APPLY
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