Table 2.
Median survival times (ST50) of the second-instar S. frugiperda larvae inoculated with the SfMNPV field isolate and genotypes.
| Test | Virus | n | ST50 (95% CI) (h.p.i.) 1 | χ 2 | p |
|---|---|---|---|---|---|
| 1 | SfMNPV-Hub | 49 | 84.0 (79.7, 88.3) | ||
| SfHub-A | 50 | 95.0 (91.5, 98.5) | 11.211 | 0.001 | |
| SfHub-E | 48 | 72.0 (69.5, 79.5) | 11.118 | 0.001 | |
| 2 | SfMNPV-Hub | 45 | 77.0 (71.2, 82.8) | ||
| SfHub-A | 51 | 95.0 (92.6, 97.4) | 21.817 | <0.001 | |
| SfHub-E | 48 | 62.5 (52.4, 72.6) | 8.827 | 0.003 |
1 ST50 values of insects were determined by the Kaplan–Meier estimator and are reported with 95% CIs. h.p.i.: hours post inoculation; d.f.: degrees of freedom.