Table 1.
Insecticidal activity of fungal organic extracts and active fractions as mortality (%) of the pea aphid Acyrthosiphon pisum at 72 h after exposure. Different lower letters refer to significant differences (p < 0.05) among treatments at the same incubation time. Extracts from T. tomentosum F19, T. asperellum CINO1, T. harzianum M10, T. harzianum F53, T. velutinum F28, P. chrysogenum F5, P. decumbens F29, P. restrictum F55 and C. virescens F57 did not show significant insecticidal activity.
| Microbes | Aphid Mortality (%) at 72 h after Exposure to Organic Extract (10 mg/mL) | Standard Deviation | Active Fraction (Number) | Aphid Mortality (%) at 72 h after Exposure to Active Fraction (0.5 mg/mL) | Standard Deviation |
|---|---|---|---|---|---|
| Paecilomyces lilacinus | 6.0 a | ±3.6 | 3 | 30.0 a | ±18.0 |
| Penicillium griseofulvum | 63.3 b | ±21.0 | 7 | 73.3 b | ±8.0 |
| Pochonia chlamydosporia | 50.0 b | ±13.0 | 2 | 100.0 c | ±0.0 |
| Beuveria bassiana | 40.0 b | ±17.0 | 3 | 40.0 a | ±22.9 |
| Metarhizium anisopliae | 53.3 b | ±5.7 | 5 | 60.0 a | ±10.0 |
| Talaromyces pinophilus | 65.0 b | ±15.0 | 2 | 48.3 a | ±5.8 |