Identification of chemical constituents and larvicidal activity of Kelussia odoratissima Mozaffarian essential oil against two mosquito vectors Anopheles stephensi and Culex pipiens (Diptera: Culicidae)

► The larvicidal activity of essential oil of Kelussia odoratissima was evaluated. ► The main constituents of the oil were Z-ligustilide (77.73%). ► The result suggest that K. odoratissima oil has potential source of larvicidal compounds. ► A guideline provided with six categories for larvicidal activity of plant essential oils. ► This plant could be considered as a highly active plant.