INVESTIGADORES
PICOLLO Maria Ines
artículos
Título:
Eucalyptus essential oil toxicity against permethrin resistant Pediculus humanus capitis
Autor/es:
TOLOZA A., A. LUCÍA, E. ZERBA, H. MASUH & M.I. PICOLLO
Revista:
PARASITOLOGY RESEARCH
Editorial:
SPRINGER
Referencias:
Año: 2009 vol. 106 p. 409 - 414
ISSN:
0932-0113
Resumen:
During the past decades, chemical control against
the head louse Pediculus humanus capitis De Geer has been
based in the application of products containing permethrin.
The repetitive overuse of pediculicides has resulted in the
development of high levels of resistance to one or more of
these products worldwide. Essential oils obtained from
aromatic plants like Eucalyptus are good and safe alternatives
due to their low toxicity to mammals and easy
biodegradability. In the present study, we reported the
chemical composition of Eucalyptus dunnii and Eucalyptus
gunni, and the fumigant activity of five Eucalyptus essential
oils and their main compounds against permethrin-resistant
head lice from Argentina. The most effective essential oils
were Eucalyptus sideroxylon, Eucalyptus globulus ssp
globulus, and Eucalyptus globulus ssp maidenii, with
knockdown time 50% (KT50) values of 24.75, 27.73, and
31.39 min. A linear regression analysis between percentage
of 1,8-Cineole and KT50 values of the essential oils showed
a significant correlation at a p