Table 4.
Mean mortality ± SE of Ephestia kuehniella larvae exposed for 7 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%).
| Temp (°C)/r.h. (%) | Mortality (%) |
|||
|---|---|---|---|---|
| Control | 8 × 106 | 8 × 108 | 8 × 1010 | |
| 20 °C and 55% | 12.2 ± 5.6 B | 39.4 ± 3.4 Ab | 42.8 ± 2.9 Ac | 36.1 ± 3.0 Ad |
| 20 °C and 75% | 8.9 ± 4.4 B | 34.4 ± 4.3 Ab | 44.4 ± 3.9 Abc | 46.7 ± 6.4 Abcd |
| 25 °C and 55% | 20.0 ± 8.9 B | 69.4 ± 4.2 Aa | 65.0 ± 5.9 Aa | 57.2 ± 3.4 Abc |
| 25 °C and 75% | 13.3 ± 5.6 C | 49.4 ± 4.8 ABb | 62.2 ± 4.0 Aab | 38.3 ± 4.0 Bcd |
| 30 °C and 55% | 13.9 ± 5.5 B | 71.1 ± 3.0 Aa | 71.1 ± 4.8 Aa | 78.3 ± 5.0 Aa |
| 30 °C and 75% | 16.1 ± 7.1 C | 47.2 ± 3.8 Bb | 68.9 ± 3.8 Aa | 64.4 ± 4.6 ABab |
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.