New Thai herbal shampoos as pediculicides for killing head louse, Pediculus humanus capitis de Geer (Phthiraptera)

Objective: To evaluate the efficacy of Thai herbal shampoos [Cartoxylum formosum (C. formosum) + eucalyptus essential oil (EO), C. formosum + citrus EO, Solanum trilobatum + eucalyptus EO, Solanum trilobatum + citrus EO, Moringa oleifera + eucalyptus EO and Moringa oleifera + citrus EO] for killing all stages of Pediculus humanus capitis (Phthiraptera). Methods: A filter paper contact method was applied with three concentrations (0.05, 0.10 and 0.20 mL/cm