Table 1. The toxicity of insecticides to the third-instar larvae of S. litura.
| Insecticides | Na | Slope ± SEb | LC15 c | LC50 c | ?2 d |
| Chlorpyrifos | 240 | 1.71±0.20 | 8.08 (4.91–11.46) | 32.69 (24.83–43.45) | 1.38 |
| Diafenthiuron | 210 | 1.90±0.25 | 7.69 (5.07–10.35) | 27.07 (20.74–37.56) | 1.06 |
| Spinosad | 210 | 1.85±0.24 | 10.64 (6.05–15.41) | 38.68 (29.18–50.61) | 2.26 |
| Indoxacarb | 210 | 2.21±0.27 | 10.28 (6.40–14.18) | 30.26 (23.46–38.27) | 2.35 |
| Chlorantraniliprole | 210 | 1.63±0.23 | 0.36 (0.18–0.56) | 1.58 (1.15–2.13) | 0.54 |
a
Number of tested larvae.
b
SE = standard error.
c
Expressed in mg/L; 95% fiducial limits (FL) of LC15, LC50 are given in parenthesis, respectively.
d
Chi-square testing linearity of dose-mortality responses.