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. 2019 Feb 18;57(1):120–124. doi: 10.1080/13880209.2018.1561727

Table 4.

LC50 and LC90 values of the four extracts against A. aegypti larvae.

Extracts/Fractions LC50, ppm (95% confidence limit) LC90, ppm (95% confidence limit)
Crude ethanol 411 (376–445) 970 (866–1119)
Ethyl acetate 18.59a (16.10–21.02) 65.047a (55.529–79.59)
Hexane 685 (633–731) 1343 (1232–1501)
Aqueous 20,158 (18,444–21,995) 55,781 (47,273–69,867)
Positivecontrol 0.65 (0.59–0.71) 1.29 (1.14–1.55)

aExtract with highest efficacy as shown by low LC50 and LC90 values.