Table 2 Mortality % of Spodoptera littoralis larvae treated with different concentrations of the five isolates displaying the highest mortality rates in single-concentration response tests
Isolates | Mortality % in days post-treatment | ||||||
|---|---|---|---|---|---|---|---|
Concentrations (conidia/ml) | 3 | 5 | 7 | 9 | 11 | 13 | |
Control | – | 0a* | 0a | 0a | 0a | 0a | 0a |
ORU-50 Beauveria bassiana | 1 × 105 | 0a | 0a | 0a | 0a | 0a | 0a |
1 × 106 | 0a | 0a | 0a | 0a | 0a | 0a | |
1 × 107 | 0a | 1.51a | 1.51a | 3.03a | 7.57ab | 7.57a | |
1 × 108 | 0a | 0a | 1.51a | 33.18a | 43.18abc | 43.18ab | |
1 × 109 | 0a | 0a | 15.00a | 36.66a | 50.00bc | 53.33b | |
ORM-40 Metarhizium brunneum | 1 × 105 | 0a | 0a | 3.33a | 3.33a | 3.33a | 6.66a |
1 × 106 | 1.66a | 1.66a | 1.66a | 1.66a | 16.06a | 24.24ab | |
1 × 107 | 2.00a | 2.00a | 2.00a | 2.00a | 30.00a | 46.00bc | |
1 × 108 | 2.00a | 2.00a | 2.00a | 18.00ab | 62.00b | 64.00cd | |
1 × 109 | 0a | 0a | 3.33a | 50.30b | 75.15b | 80.15d | |
ORP-13 M.brunneum | 1 × 105 | 0a | 0a | 0a | 0a | 0a | 0a |
1 × 106 | 1.66a | 1.66a | 1.66a | 1.66ab | 10.00a | 10.00a | |
1 × 107 | 0a | 0a | 1.66a | 32.27bc | 57.12b | 58.78b | |
1 × 108 | 3.33a | 5.00a | 20.00a | 61.66cd | 70.00b | 70.00b | |
1 × 109 | 4.00a | 4.00a | 60.00b | 84.00d | 84.00b | 84.00b | |
ORP-27 M.brunneum | 1 × 105 | 2.00a | 2.00a | 2.00a | 2.00a | 3.81a | 3.81a |
1 × 106 | 1.81a | 1.81a | 3.81a | 3.81a | 3.81a | 3.81a | |
1 × 107 | 5.00a | 5.00a | 12.22a | 43.28b | 44.79b | 49.79b | |
1 × 108 | 0a | 0a | 14.54a | 76.91c | 84.72c | 84.72c | |
1 × 109 | 0a | 0a | 16.00a | 78.00c | 88.00c | 88.00c | |
ORM-48 Clonostachys rogersoniana | 1 × 105 | 0a | 0a | 0a | 0a | 0a | 0a |
1 × 106 | 1.66a | 1.66a | 10.00a | 10.00a | 10.00a | 10.00a | |
1 × 107 | 1.66a | 1.66a | 28.33a | 33.33ab | 48.33b | 48.33b | |
1 × 108 | 1.66a | 3.33a | 43.33a | 61.66bc | 63.33b | 63.33b | |
1 × 109 | 0a | 7.50a | 32.95a | 75.45c | 75.45b | 75.45b | |