Toloza Ariel Ceferino, Zygadlo Julio, Mougabure-Cueto Gastón, Zerba Eduardo, Faillaci Silvina, Picollo María Inés
Centro de Investigaciones de Plagas e Insecticidas, J. B. de La Salle 4397 (B1603ALO), Provincia de Buenos Aires, Argentina.
Mem Inst Oswaldo Cruz. 2006 Feb;101(1):55-6. doi: 10.1590/s0074-02762006000100010. Epub 2006 May 12.
New alternative insecticides are necessary for the chemical control of head lice. In this study the fumigant knockdown time 50% (KT50) and repellency index (RI) of three aliphatic lactones was compared with two essential oils and DDVP, against permethrin-resistance Pediculus humanus capitis from Argentina. In the fumigant assay, none of the lactones were effective compared to the highest activity of eucalyptus (KT50 15.53 m). In the repellency test, the three lactones were equally or more effective (RI ranging from 60.50 to 76.68) than the positive control (piperonal). These lactones are promising as head lice repellents.
新型替代杀虫剂对于头虱的化学防治至关重要。在本研究中，将三种脂肪族内酯的熏蒸击倒时间50%（KT50）和驱避指数（RI）与两种精油及敌敌畏进行了比较，受试对象为来自阿根廷的对氯菊酯耐药的人头虱。在熏蒸试验中，与具有最高活性的桉树（KT50为15.53分钟）相比，没有一种内酯是有效的。在驱避试验中，三种内酯与阳性对照（胡椒醛）相比具有同等效力或更高效力（RI范围为60.50至76.68）。这些内酯有望成为头虱驱避剂。
