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%.