Publication: Physical influence on larvicidal and pupicidal activity of the silicone-based monomolecular film
Issued Date
2016-10-01
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ISSN
18736254
0001706X
0001706X
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2-s2.0-84979255387
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Mahidol University
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SCOPUS
Bibliographic Citation
Acta Tropica. Vol.162, (2016), 239-244
Suggested Citation
Warunee Ngrenngarmlert, Chutipong Sukkanon, Rapeeporn Yaicharoen, Theeraphap Chareonviriyaphap Physical influence on larvicidal and pupicidal activity of the silicone-based monomolecular film. Acta Tropica. Vol.162, (2016), 239-244. doi:10.1016/j.actatropica.2016.07.012 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/40703
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Title
Physical influence on larvicidal and pupicidal activity of the silicone-based monomolecular film
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Abstract
© 2016 Although silicone-based monomolecular film (MMF) has been accepted as larvicide in several countries, its mosquito control potential has never been investigated in Thailand. Laboratory assessment in this study was conducted to determine the MMF efficacy against Aedes aegypti. At the recommended dosage (1 mL/m2of water surface), mortality of pupae (99.17 ± 0.83%) was significantly greater than mortality of old and young larvae (73.33 ± 9.13, 11.67 ± 3.47%; respectively). Pupicidal activity was rapidly exhibited within hours while larvicidal activity took at least one day. Interestingly, among the survived mosquitoes after MMF exposure, larval length (3.6 ± 0.18 mm), pupation (0%) and adult emergence (0%) were significantly less than the control group. Gravid females also avoided laying eggs in MMF-treated oviposition cups. There was no influence of physical factors on MMF efficacy and no toxic effects on fish and plants. These results indicated the MMF is promising to provide not only larvicidal and pupicidal activity but also inhibition of larval development as indicated by both larval length and stage transformation.