Table 1 Resistance development in Spodoptera littoralis laboratory selected line against Cry1C toxin
Generation | LC50 (μg/g diet) | 95% confidence limit | Slope ± Se | Resistance ratio (RR) |
|---|---|---|---|---|
F1 | 0.17 | 0.11–0.24 | 1.39 ± 0.16 |  |
F3 | 2.40 | 2.06–3.01 | 2.87 ± 0.59 | 14.12 |
F6 | 3.74 | 2.84–5.35 | 1.80 ± 0.37 | 22.00 |
F9 | 5.39 | 4.33–7.61 | 2.33 ± 0.47 | 31.71 |
F12 | 5.46 | 4.75–6.60 | 2.79 ± 0.47 | 32.12 |