Table 4: Larvicidal activity of carbamates against early fourth instars of Aedes aegypti.

S. No. Insecticides LC50 in ppm LC90 in ppm χ2
(df)
Slope ± SE
1 Carbofuran 0.5253
(0.4642-0.5888)
1.0576
(0.9006-1.3521)
5.888
(3)
4.0612±0.55
2 Fenobucarb 0.5914
(0.5241-0.6510)
1.0861
(0.9763-1.2537)
3.575
(5)
4.3071±0.76

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.