Table 5.
Mean mortality ± SE of Ephestia kuehniella larvae exposed for 14 d on M. anisopliae, applied at three dose rates (8 × 106, 8 × 108, and 8 × 1010 conidia ml − 1) at three temperatures (20, 25, and 30 °C) and two r.h. levels (55 and 75%).
| Temperature (°C)/r.h. (%) | Mortality (%) |
|||
|---|---|---|---|---|
| Control | 8 × 106 | 8 × 108 | 8 × 1010 | |
| 20 °C and 55% | 23.9 ± 9.9 B | 71.1 ± 3.6 Aabc | 70.6 ± 3.5 Abc | 59.4 ± 3.5 Ac |
| 20 °C and 75% | 12.8 ± 5.5 B | 41.1 ± 5.4 Ad | 59.4 ± 5.3 Ac | 63.3 ± 7.5 Abc |
| 25 °C and 55% | 28.3 ± 11.4 B | 88.3 ± 3.9 Aa | 88.3 ± 0.9 Aa | 93.9 ± 3.3 Aa |
| 25 °C and 75% | 18.3 ± 6.6 B | 63.3 ± 5.3 Abc | 85.0 ± 3.3 Aab | 68.9 ± 7.4 Abc |
| 30 °C and 55% | 16.1 ± 5.6 B | 80.0 ± 3.9 Aab | 86.1 ± 5.0 Aab | 85.6 ± 4.6 Aab |
| 30 °C and 75% | 19.4 ± 7.5 C | 54.4 ± 4.8 Bcd | 88.3 ± 3.7 Aa | 78.3 ± 4.6 Aabc |
Within each row, means followed by the same uppercase letter do not differ significantly (in all cases df = 3, 47; Bonferroni t-test at P = 0.05). Within each column, means followed by the same lowercase letter do not differ significantly (in all cases df = 5, 71; Bonferroni t-test at P = 0.05). Where no letters exist, no significant differences were noted.