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Research Article

Table 2

Larvicidal effect of Piper aduncum, Ocimum campechianum and Ocotea quixos essential oils on Aedes aegypti at different concentrations, after 24 h of exposure, expressed as percentage of mortality.

EOa Time (h) Concentration
LC50 b (CI95)c LC90 b (CI95)c LC99 b (CI95) c DFd SLOPEe v2
1000 500 250 100 75 50 37.5 25 12.5
P. aduncum 24 100 100 100 100 100 100 95.7 42.6 2.7 23.73 (19.62–28.69) 35.51 (29.36–42.93) 49.31 (40.78–59.63) 2 7.43 0.003
O. campechianum 24 100 100 100 84.1 53.7 28.3 2.2 0 0 69.29 (58.69–81.81) 109.46 (92.71–129.24) 158.91 (134.59–187.63) 2 1.47 0.000
O. quixos 24 100 100 100 73.2 57.1 13.2 2.9 0 0 75.51 (63.22–90.19) 122.56 (102.6–146.39) 181.89 (152.28–217.26) 2 6.10 0.188
a

EO: essential oil.

b

LC: lethal concentrations.

c

CI: confidence intervals.

d

DF: dialysable fraction.

e

SLOPE: slope of regression line, p-value, 95%.

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