title: Larvicidal and repellent activity of the essential oil of Coriandrum sativum L. (Apiaceae) fruits against the filariasis vector Aedes albopictus Skuse (Diptera: Culicidae).
abstract: The essential oils of many Apiaceae species have been already studied for their insecticidal and repellent properties against insect pests. In this research, the essential oil (EO) extracted from the fruits of Coriandrum sativum L. (Apiaceae) was evaluated for the first time for its larvicidal and repellent activities against the most invasive mosquito worldwide, Aedes albopictus Skuse (Diptera: Culicidae). The chemical composition of C. sativum EO was investigated by gas chromatography with electron impact mass spectrometry analysis. Coriander EO was mainly composed by monoterpene hydrocarbons and oxygenated monoterpenes, with linalool (83.6 %) as the major constituent. C. sativum EO exerted toxic activity against A. albopictus larvae: LC(50) was 421 ppm, while LC(90) was 531.7 ppm. Repellence trials highlighted that C. sativum EO was a good repellent against A. albopictus, also at lower dosages: RD(50) was 0.0001565 μL/cm(2) of skin, while RD(90) was 0.002004 μL/cm(2). At the highest dosage (0.2 μL/cm(2) of skin), the protection time achieved with C. sativum essential oil was higher than 60 min. This study adds knowledge about the chemical composition of C. sativum EO as well as to the larvicidal and repellent activity exerted by this EO against A. albopictus. On this basis, we believe that our findings could be useful for the development of new and safer products against the Asian tiger mosquito.
authors.affiliation: Entomology Section-Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Benelli
authors.forename: Guido
authors.initials: G
authors.lastname: Flamini
authors.forename: Giulia
authors.initials: G
authors.lastname: Fiore
authors.forename: Pier Luigi
authors.initials: PL
authors.lastname: Cioni
authors.forename: Barbara
authors.initials: B
authors.lastname: Conti
mesh_terms: D000330:Aedes / Q000187:drug effects*; D000818:Animals; D001681:Biological Assay; D028526:Coriandrum / Q000737:chemistry*; D004199:Disease Vectors; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D007302:Insect Repellents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D007306:Insecticides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D008297:Male; D009822:Oils, Volatile / Q000302:isolation & purification / Q000494:pharmacology*; D016019:Survival Analysis
chemical_list: D007302:Insect Repellents; D007306:Insecticides; D009822:Oils, Volatile