Table 2.
Effect of fenoxycarb on development time of P. xylostella offspring when treated in parents third-instar larvae
| Entries | Development time (Mean ± SE) (day)a |
F | P | dft,e | ||
|---|---|---|---|---|---|---|
| Control | LC10 | LC25 | ||||
| Egg | 2.18 ± 0.03 c | 2.88 ± 0.05 b | 3.21 ± 0.05 a | 120.37 | <0.0001 | 2, 291 |
| First-instar larvae | 2.98 ± 0.05 b | 3.34 ± 0.09 a | 3.07 ± 0.10 ab | 4.46 | 0.0127 | 2, 204 |
| Second-instar larvae | 1.61 ± 0.08 b | 1.82 ± 0.08 b | 2.19 ± 0.10 a | 9.95 | <0.0001 | 2, 188 |
| Third-instar larvae | 1.25 ± 0.07 a | 1.34 ± 0.06 a | 1.21 ± 0.06 a | 1.22 | 0.2962 | 2, 178 |
| Fourth-instar larvae | 1.51 ± 0.06 b | 2.40 ± 0.08 a | 2.28 ± 0.12 a | 33.14 | <0.0001 | 2, 162 |
| All larvae | 7.44 ± 0.23 c | 8.89 ± 0.16 a | 8.25 ± 0.13 b | 17.54 | <0.0001 | 2, 159 |
| Prepupa | 0.40 ± 0.06 a | 0.35 ± 0.06 a | 0.48 ± 0.08 a | 0.91 | 0.4055 | 2, 159 |
| Pupa | 3.70 ± 0.10 b | 4.98 ± 0.16 a | 4.71 ± 0.16 a | 24.87 | <0.0001 | 2, 141 |
| Pre adult stages | 13.61 ± 0.19 b | 17.22 ± 0.21 a | 16.62 ± 0.24 a | 88.88 | <0.0001 | 2, 140 |
| Total life span (male) | 30.78 ± 1.26 a | 32.38 ± 1.39 a | 28.76 ± 1.33 a | 1.70 | 0.1906 | 2, 72 |
| Total life span (female) | 31.30 ± 1.18 a | 32.20 ± 1.57 a | 28.12 ± 1.47 a | 1.82 | 0.1697 | 2, 67 |
aMeans followed by the same letters within a row are not significantly different (Tukey's test; P < 0.05).