Table 3.
Estimates of life table parameters of A. ipsilon when 3rd-instar larvae were exposed to low-lethal concentrations of chlorantraniliprole.
| Treatments | Population parameters | ||||
|---|---|---|---|---|---|
| r (d−1) | λ (d−1) | R0 (offspring/individual) | T (d) | GRR (offspring/individual) | |
| Control | 0.1211 ± 0.0016 a | 1.1287 ± 0.0029 a | 544.66 ± 35.6515 a | 52.05 ± 0.2641 b | 863.24 ± 28.4125 b |
| LC05 | 0.1110 ± 0.0027 b | 1.1174 ± 0.0037 b | 395.42 ± 28.4212 b | 53.86 ± 0.1987 b | 682.39 ± 35.6974 c |
| LC25 | 0.0981 ± 0.0019 c | 1.1031 ± 0.0034 c | 223.47 ± 31.0527 c | 55.14 ± 0.3656 a | 968.64 ± 41.7569 a |
| LC45 | 0.0859 ± 0.0021 d | 1.0897 ± 0.0023 d | 124.68 ± 22.3698 d | 56.12 ± 0.2543 a | 347.89 ± 32.4106 d |
SEs were estimated using 200,000 bootstraps and compared with paired bootstrap tests based on the 5% significance level.
Means followed by different lowercase letters in the same column are significantly different (P < 0.05).
r = the intrinsic rate of increase; λ = the finite rate of increase; R0 = the net reproduction rate; T = the mean generation time; GRR = the gross reproduction rate.