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Abstract
Mosquitos transmit human diseases including malaria, dengue fever, yellow fever, and encephalitis. Methylenedioxy compounds are considered to be safe synergists that enhance the activity of active ingredients to control mosquito populations. Seven naturally occurring compounds from Piper nigrum and P. longum were used to determine their larvicidal activities against larvae of Culex pipiens pallens. Among the tested compounds, myristicin and dodecanol showed potent larvicidal activity. Several modes of larvicidal action have been suggested for natural compounds, and in this study, their larvicidal effects on the surface water tension were considered and determined using a tensiometer in order to understand how lowering water surface tension was associated with mortality. In conclusion, lowering water surface tension was related to the larvicidal activities of myristicin and dodecanol.
Details
1 Kyungpook National University, School of Applied Biosciences, Daegu, Republic of Korea (GRID:grid.258803.4) (ISNI:0000 0001 0661 1556)
2 Inje University, Department of Pharmaceutical Engineering, Gimhae, Republic of Korea (GRID:grid.411612.1) (ISNI:0000 0004 0470 5112)
3 Ulsan National Institute of Science and Technology, School of Urban and Environmental Engineering, Ulsan, Republic of Korea (GRID:grid.42687.3f) (ISNI:0000 0004 0381 814X)
4 Korea Centre for Disease Control and Prevention, Division of Medical Entomology, National Institute of Health, Osong, Republic of Korea (GRID:grid.415482.e) (ISNI:0000 0004 0647 4899)
5 Chonbuk National University, Department of Bioenvironmental Chemistry, Jeonju, Republic of Korea (GRID:grid.411545.0) (ISNI:0000 0004 0470 4320)
6 Kyungpook National University, School of Applied Biosciences, Daegu, Republic of Korea (GRID:grid.258803.4) (ISNI:0000 0001 0661 1556); Kyungpook National University, School of Applied Biosciences, Daegu, Republic of Korea (GRID:grid.258803.4) (ISNI:0000 0001 0661 1556)