title: Evaluation of larvicidal activity of medicinal plant extracts against three mosquito vectors.
abstract: OBJECTIVE
  To evaluate the mosquito larvicidal activity of plant extracts.
  
  
  METHODS
  The hexane, chloroform, ethyl acetate, acetone, and methanol leaf, flower and seed extracts of Abrus precatorius (A. precatorius), Croton bonplandianum (C. bonplandianum), Cynodon dactylon (C. dactylon), Musa paradisiaca (M. paradisiaca) and Syzygium aromaticum (S. aromaticum) were tested against fourth instar larvae of Anopheles vagus (An. vagus), Armigeres subalbatus (Ar. subalbatus) and Culex vishnui (Cx. vishnui).
  
  
  RESULTS
  The highest larval mortality was found in seed ethyl acetate extracts of A. precatorius and leaf extracts of C. bonplandianum, flower chloroform and methanol extracts of M. paradisiaca, and flower bud hexane extract of S. aromaticum against An. vagus with LC(50) values of 19.31, 39.96, 35.18, 79.90 and 85.90 μg/mL; leaf ethyl acetate and methanol extracts of C. dactylon, flower methanol extract of M. paradisiaca, flower bud methanol extract of S. aromaticum against Ar. subalbatus with LC(50) values of 21.67, 32.62, 48.90 and 78.28 μg/mL, and seed methanol of A. precatorius, flower methanol extract of M. paradisiaca, flower bud hexane extract of S. aromaticum against Cx. vishnui with LC(50) values of 136.84, 103.36 and 149.56 μg/mL, respectively.
  
  
  CONCLUSIONS
  These results suggest that the effective plant crude extracts have the potential to be used as an ideal ecofriendly approach for the control of disease vectors. This study provides the first report on the larvicidal activity of crude solvent extracts of different mosquitoes.
authors.affiliation: Unit of Nanotechnology and Bioactive Natural Products, Post Graduate and Research Department of Zoology, C. Abdul Hakeem College, Vellore District, Tamil Nadu, India.
authors.forename: A
authors.initials: A
authors.lastname: Bagavan
authors.forename: A Abdul
authors.initials: AA
authors.lastname: Rahuman
mesh_terms: D000818:Animals; D000852:Anopheles / Q000187:drug effects*; D045424:Complex Mixtures / Q000302:isolation & purification / Q000494:pharmacology; D009033:Culicidae / Q000187:drug effects*; D007306:Insecticides / Q000302:isolation & purification / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology*; D010946:Plants, Medicinal / Q000737:chemistry*; D016019:Survival Analysis
chemical_list: D045424:Complex Mixtures; D007306:Insecticides; D010936:Plant Extracts