Table 2: Larvicidal activity of organochlorines against early fourth instars of Aedes aegypti.
| S. No. |
Insecticides |
LC50 in ppm |
LC90 in ppm |
χ2
(df)
|
Slope ± SE |
| 1 |
Lindane |
0.0832
(0.0662-0.1014) |
0.4011
(0.3062-0.5819) |
5.29 (7) |
1.737±0.28 |
| 2 |
Endosulphan |
0.3987
(0.2863-0.5085) |
0.7163
(0.5552-1.1754) |
9.64 (5) |
1.29±0.65 |
LC50 - Lethal Concentration that kills 50% of the exposed larvae, LC90 - Lethal Concentration that kills 90% of the exposed larvae; Values in parentheses indicate the lower and upper 95% fiducial limits; χ2 = Chi-square, S.E. = Standard Error, df = degree of freedom.