Table 1.
Concentration (CFU/ml) | Dead/ total | Observed mortality (%) | Expected mortality (%) |
---|---|---|---|
1 × 103 | 1.5 / 20 | 7.50 | 7.76 |
1 × 104 | 4.5 / 20 | 22.50 | 19.23 |
1 × 105 | 7.0 / 20 | 35.00 | 37.56 |
1 × 106 | 10.5 / 20 | 52.50 | 59.30 |
1 × 107 | 15.6 / 20 | 78.00 | 78.46 |
1 × 108 | 17.6 / 20 | 88.00 | 91.00 |
Control | 0 / 20 | – | – |
Chi2 | 0.383 | ||
Slope | 0.5136 ± 0.0854 | ||
LC50 | 4.8 × 105 cells/ml | ||
LC20 | 1.1 × 104 cells/ml |