Table 3.
Mean mortality ± SE of Ephestia kuehniella larvae exposed for 2 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% | 9.4 ± 5.2 B | 26.7 ± 2.3 Abc | 27.8 ± 2.3 Ac | 21.7 ± 3.4 ABbc |
| 20 °C and 75% | 7.2 ± 3.3 B | 23.9 ± 2.7 Ac | 27.8 ± 2.9 Ac | 30.6 ± 4.0 Ab |
| 25 °C and 55% | 3.9 ± 1.9 C | 31.1 ± 3.4 Abc | 11.7 ± 2.2 BCd | 13.9 ± 1.9 Bc |
| 25 °C and 75% | 10.0 ± 4.6 B | 36.7 ± 3.4 Ab | 33.9 ± 3.2 Abc | 30.0 ± 3.2 Ab |
| 30 °C and 55% | 12.8 ± 5.3 B | 50.6 ± 2.4 Aa | 52.8 ± 4.0 Aa | 61.1 ± 4.3 Aa |
| 30 °C and 75% | 11.7 ± 5.3 B | 36.1 ± 3.3 Abc | 46.1 ± 2.9 Aab | 50.6 ± 2.8 Aa |
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.