Table 5. Pathogenicity of L. lecanii pre-treated by the different chemical in different quantities.
Series | Treatments | Fungal pathogenicity to L. erysimi | |||
---|---|---|---|---|---|
Compounds | Quantities (nmol·ml−1) | LT50 | 95% Confidence limits (lower-upper) | Mortality (%) | |
0 | 5.94 | 5.63–6.30 | 46.00 ± 2.67a | ||
1 | 4.94 | 4.68–5.23 | 49.33 ± 2.45a | ||
I | Menthol | 10 | 4.57 | 4.34–4.81 | 73.33 ± 4.35b |
100 | 6.04 | 5.69–6.42 | 46.00 ± 3.23a | ||
1000 | 5.87 | 5.53–6.29 | 38.00 ± 2.00a | ||
0 | 5.94 | 5.63–6.30 | 46.00 ± 2.67ab | ||
1 | 5.05 | 4.80–5.34 | 62.00 ± 2.71c | ||
II | Methyl salicylate | 10 | 6.30 | 5.91–6.80 | 50.0 0 ± 2.36ad |
100 | 7.08 | 6.55–7.79 | 37.32 ± 2.21be | ||
1000 | 7.60 | 6.95–8.53 | 32.00 ± 1.70e | ||
0 | 5.94 | 5.63–6.30 | 46.00 ± 2.67a | ||
1 | 6.05 | 5.71–6.46 | 36.67 ± 3.33a | ||
III | Decan-3-ol | 10 | 6.62 | 6.24–7.12 | 35.33 ± 4.55a |
100 | 7.05 | 6.54–7.73 | 40.66 ± 3.71a | ||
1000 | 7.52 | 6.93–8.36 | 34.66 ± 3.42a | ||
0 | 5.94 | 5.63–6.30 | 46.00 ± 2.67a | ||
IV | Benzaldehye | 0.2 | 7.32 | 6.79–8.04 | 42.67 ± 4.14a |
2 | 7.90 | 7.22–8.88 | 34.66 ± 2.67a | ||
V | Phenylacetaldehyde | 0 | 5.94 | 5.63–6.30 | 46.00 ± 2.67a |
0.2 | 7.80 | 7.13–8.77 | 38.67 ± 3.43a |
Data shows LT50 value and percent mean mortality ± SE of 3 replicates 15 d post-exposure at 25 °C. LT50 were analyzed by linear regression. The number ‘0’ in the quantities column represent control treatments. Means followed by the different letter are significantly different (Tukey’s HSD test, P < 0.05).