Table 6 Life table parameters (mean ± SE) of T. absoluta treated as second instar larvae by LC50 values of B. thuringiensis or B. bassiana
Population parameter | (Mean ± SE) | F(df) | P value | ||
|---|---|---|---|---|---|
Control | B. thuringiensis | B. bassiana | |||
The net reproductive rate (R0) | 101.3 ± 18.9 a | 38.73 ± 11.98 b | 44.57 ± 11.92 b | 5.57(2,87) | 0.013 |
The intrinsic rate of increase (r m ) | 0.142 ± 0.01a | 0.097 ± 0.01 b | 0.099 ± 0.01 b | 11.88(2,87) | 0.041 |
The finite rate of increase (λ) | 1.15 ± 0.01 a | 1.10 ± 0.01 b | 1.11 ± 0.01b | 13.34(2,87) | 0.029 |
The mean generation time (T0) | 32.69 ± 0.4 a | 38.09 ± 0.83 b | 38.57 ± 0.58 b | 26.98 (2,87) | < 0.0001 |
Doubling time (DT) | 4.9 ± 0.3 a | 7.1 ± 0.4 b | 7.0 ± 0.3 b | 13.62(2,87) | < 0.0001 |