Publication: Larvicidal activity of synthesized silver nanoparticles from curcuma zedoaria essential oil against culex quinquefasciatus
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Issued Date
2019-11-01
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20754450
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2-s2.0-85062241993
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Mahidol University
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SCOPUS
Bibliographic Citation
Insects. Vol.10, No.1 (2019)
Suggested Citation
Nataya Sutthanont, Siriluck Attrapadung, Surang Nuchprayoon Larvicidal activity of synthesized silver nanoparticles from curcuma zedoaria essential oil against culex quinquefasciatus. Insects. Vol.10, No.1 (2019). doi:10.3390/insects10010027 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/49710
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Title
Larvicidal activity of synthesized silver nanoparticles from curcuma zedoaria essential oil against culex quinquefasciatus
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Abstract
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Culex quinquefasciatus is the major vector of the bancroftian filarial parasite which causes human lymphatic filariasis and St. Louis encephalitis. The simple way to stop the transmission is to control the vector by using synthetic chemicals. However, herbal essential oils have biological properties, such as a larvicidal effect and are ecofriendly to use. In this study, we investigated the larvicidal activity of Curcuma zedoaria essential oil (ZEO) and biosynthesized silver nanoparticles using this essential oil (ZEO-AgNPs). The larvicidal activity against both insecticide-susceptible and -resistant strains of Cx. quinquefasciatuslarvae of ZEO were investigated and compared with ZEO-AgNPs. The ZEO-AgNPs showed the utmost toxicity against both strains of Cx. quinquefasciatus. After 24 h of exposure, LC 50 and LC 99 of ZEO against susceptible strain were 36.32 and 85.11 ppm, respectively. While LC 50 and LC 99 of ZEO against the resistant strain were 37.29 and 76.79 ppm, respectively. Whereas ZEO-AgNPs offered complete larval mortality within 24 h of exposure, LC 50 and LC 99 of ZEO-AgNPs against the susceptible strain, were 0.57 and 8.54 ppm, respectively. For the resistant strain, LC 50 and LC 99 values were 0.64 and 8.88 ppm, respectively. The potency in killing Cx. quinquefasciatus and stability of ZEO-AgNPs have made this product a good candidate for the development of novel natural larvicides.