| Autor: |
Rajeswary M; Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608002, India., Govindarajan M; Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608002, India. drgovind1979@gmail.com., Alharbi NS; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia., Kadaikunnan S; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia., Khaled JM; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia., Benelli G; Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy. benelli.giovanni@gmail.com. |
| Abstrakt: |
Mosquitoes are responsible for the transmission of many pathogens and parasites, which cause serious diseases in humans and animals. Currently, botanical products have been suggested as alternative tools in the fight against arthropod vectors. In this study, the essential oil (EO) extracted from Zingiber cernuum was tested as larvicide and oviposition deterrent on six mosquito species of public health relevance, including malaria and Zika virus vectors. The EO showed high toxicity on third instar larvae of Anopheles stephensi (LC 50 = 41.34 μg/ml), Aedes aegypti (LC 50 = 44.88 μg/ml), Culex quinquefasciatus (LC 50 = 48.44 μg/ml), Anopheles subpictus (LC 50 = 51.42 μg/ml), Aedes albopictus (LC 50 = 55.84 μg/ml), and Culex tritaeniorhynchus (LC 50 = 60.20 μg/ml). In addition, low doses of Z. cernuum EO reduced oviposition rates in six mosquito species. The acute toxicity of Z. cernuum EO on four mosquito predators was scarce; LC 50 ranged from 3119 to 11,233 μg/ml. Overall, our results revealed that the Z. cernuum EO can be considered for the development of effective and environmental-friendly mosquito larvicides and oviposition deterrents. |
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