Table 2.
Mean mortality ± SE of Ephestia kuehniella larvae exposed for 1 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% | 3.3 ± 2.2 B | 20.6 ± 2.5 Ab | 12.8 ± 1.5 Abc | 14.4 ± 2.1 Ab |
| 20 °C and 75% | 6.1 ± 2.8 B | 13.3 ± 1.8 ABb | 17.8 ± 1.7 Aab | 18.9 ± 2.1 Ab |
| 25 °C and 55% | 2.8 ± 1.7 B | 21.1 ± 2.1 Ab | 8.3 ± 1.7 Bc | 5.0 ± 0.9 Bc |
| 25 °C and 75% | 5.0 ± 2.3 B | 17.2 ± 1.7 Ab | 15.0 ± 2.3 Abc | 16.1 ± 2.1 Ab |
| 30 °C and 55% | 11.1 ± 5.0 B | 34.4 ± 2.0 Aa | 26.7 ± 3.2 Aa | 38.9 ± 2.7 Aa |
| 30 °C and 75% | 8.9 ± 4.5 C | 20.0 ± 2.2 Bb | 26.1 ± 1.9 ABa | 35.6 ± 1.7 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.