ACTIVITY OF SELECTIVE DIFFERENT OILS AGAINST PEDICULUS HUMANUS CAPITIS
Ms. Trupti D. Dhumal, Dr. J.S. Waghmare*
ABSTRACT
Head lice infestation is an emerging social problem in undeveloped
and developed countries. Because of louse resistance increasing,
several long-used insecticidal compounds have lost their efficacy, and
alternatives, such as essential oils, have been proposed to treat this
parasitic infestation. Non-toxic alternative options are hence needed
for head lice treatment or prevention and natural products from plants,
especially essential oils (EOs) are good for safer control agents that
may provide good anti-lice activity and low levels of evolved resistance and also other nonedible
oil that have head lice resistance activity. A few Essential oils have been tested as
repellents with promissory results, although often in vitro tests and clinical trials produce
contradictory results. The use of pyrethroids to control head louse infestations have suffered
considerable loss of efficacy due to the development of resistance. In the last past few years,
several new alternative products to synthetic pyrethroids have been developed and are sold in
the market against head lice. The present study investigated the efficacy of some essential oil
and non-edible oil that have high medicinal value and therefore use against head lice as
Chemical constituents of these oils present a wide range of biological activities. The aim of
the present research study was to investigate the pediculicidal activity of essential oils and
non-edible oil that have high medicinal value like clove and eucalyptus oil as essential, neem
oil as non-edible and also camphor in coconut oil and compare the relative toxicity. The oil
was obtained by hydro-distillation and by solvent extraction process and their analysis done
through use of FTIR and GC. A filter paper diffusion bioassay method was carried out in
order to determine the pediculicidal activity of oils. The pediculicidal potential of different concentration of oils of clove, eucalyptus, neem and camphor in coconut oil (Camphorated
oil) was found to be excellent for head lice and the mean death time observed with high
active clove oil was overall as 24.49 minutes, which was comparable to other group oil.
Keywords: insect repellents, contradictory India.
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