Larvicidal potentiality of <i>Derris indica</i> Bennet. extracts against <i>Culex quinquefasciatus</i> Say (Diptera: Culicidae) larvae

Abstract

Chloroform extracts of fruit shell, leaf, root-bark, root-wood, seeds, stem-bark and stem-wood of Derris indica Bennet. were tested on the mosquito Culex quinquefasciatus Say larvae. The LC50 values of fruit shell, leaf, root-bark, root-wood, seed, stem-bark and stem-wood were 30762.54, 60922.83, 70070.31, 3867.32, 361.89, 453810.10 and 225860.20 ppm, respectively for 30 minutes of exposure; 220.60, 141.56, 59.54, 36.95, 21.52, 229.92 and 82.84 ppm, respectively for 24 hours of exposure, and 49.97, 34.00, 26.26, 18.33, 8.64 , 68.88 and 30.15 ppm, respectively for 48 hours of exposure. The dose-mortality effects were in the order: seed &gt; root-wood &gt; root-bark &gt; stem-wood &gt; leaf &gt; fruit shell &gt; stem-bark. DOI: http://dx.doi.org/10.3329/bjz.v39i2.10568 Bangladesh J. Zool. 39(2): 137-145, 2011

Larvicidal efficacy of selected medicinal plants against the filarial vector mosquito Culex quinquefasciatus Say (Diptera: Culicidae)

“…In general, all of the tested plant extracts exhibited a strong positive correlation between the concentration of extracts and larval mortality (p˂0.001) with a correlation coefficient more than 0.90 (Figure 2). This pattern of positive correlation between concentration and larval mortality is comparable with previously published literature showing that increased concentration of aqueous extracts of the root of Derris elliptica (Sayono et al, 2019), chloroform extracts of the root of Derris indica (Mondal et al, 2011), aqueous dried leaf extracts of Cinnamomum tamala, Aloe vera and Ocimum basilicum, aqueous dried fruit extracts of Datura alba and Zingiber officinale (Iqbal et al, 2018), different solvent extracts of the root of Annona reticulata (Mallick & Chandra, 2015) and aqueous rhizome extracts of Curcuma longa, C. zedoaria and Z. officnale (Rahman et al, 2009) 1). Similarly, the LC 90 values were also lowest for D. scandens (24 h=188.52 ppm and 48 h= 160.82 ppm) followed by R. cordifolia (24 h=204.09 ppm and 48 h=175.51 ppm) and S. lappa (24 h=248.72 ppm and 48 h=219.79 ppm).…”