What question did this study set out to answer?

Evaluate and compare the repellent efficacy and duration of five essential oils and nine isolated components against DEET against the human body louse (Pediculus humanus humanus).

March 1, 1996Entomologia Experimentalis et ApplicataOpen Access

Repellency of essential oils and their components to the human body louse, Pediculus humanus humanus

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Evaluate and compare the repellent efficacy and duration of five essential oils and nine isolated components against DEET against the human body louse (Pediculus humanus humanus).
Assessed intrinsic repellency and duration by applying compounds to corduroy patches compared with untreated controls.
Evaluated comparative repellency using a screening technique featuring human hairs treated with ammonium bicarbonate as an attractant.
Determined relative potency through serial dilutions of candidate repellents.
On corduroy patches, DEET and citronella maintained repellent activity for at least 29 days, rosemary for at least 18 days, citronellal for over 15 days, and geraniol and eucalyptus for over 8 days.
Minimum effective dilutions on patches were 1:32 for DEET, 1:8 for geraniol, 1:4 for citronella, and 1:1 for both rosemary and citronellal.
In ammonium bicarbonate-treated hair assays, repellent activity lasted 2 days for citronella and geraniol, 1 day for rosemary and citronellal, and under 1 day for DEET, though dilution differences were not statistically significant.

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Implication

Comparative bioassay reveals strong repellency of citronella and plant compounds against human body lice, indicating promising natural alternatives to synthetic repellents.

Cite This Study

Mumcuoğlu et al. (1996) studied this question.

synapsesocial.com/papers/6a6fac03f44fa9f079dd2378 https://doi.org/10.1111/j.1570-7458.1996.tb00795.x

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Implication

Comparative bioassay reveals strong repellency of citronella and plant compounds against human body lice, indicating promising natural alternatives to synthetic repellents.

Repellency of essential oils and their components to the human body louse, Pediculus humanus humanus

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Discussion

Implication

Cite This Study

Repellency of essential oils and their components to the human body louse, Pediculus humanus humanus

Key Points

Discussion

Implication

Cite This Study

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