Table 1: The state of D. veneta vermin populations in oil- contaminated soils after 22 weeks of incubation.
Sample No. | Survival % | Total population pcs. | Total productivity cocoons/container | Individual productivity cocoons/species |
1. Control | 100 | 33 ± 0.98 | 3.4 ± 0.05 | 1.5 ± 0.01 |
2. Microbiological preparation | 100 | 95 ± 2.05 | 15.4 ± 0.12 | 2.1 ± 0.01 |
3. Soil with oil concentration 20 g/kg | 100 | 93 ± 2.02 | 15.3 ± 0.11 | 15.3 ± 0.11 |
4. Soil with oil concentration 20 g/kg and biopreparation | 100 | 114 ± 2.34 | 13.4 ± 0.09 | 1.24 ± 0.02 |
5. Soil with oil concentration 40 g/kg | 80 | 73 ± 1.74 | 10.7 ± 0.09 | 1.72 ± 0.02 |
6. Soil with oil concentration 40 g/kg and biopreparation | 80 | 40 ± 0.97 | 6.8 ± 0.05 | 0.8 ± 0.01 |
7. Soil with oil concentration 60 g/kg | 0 | 0 | 0 | 0 |
8. Soil contaminated with oil 60 g/kg and biopreparation | 70 | 20 ± 0.51 | 3.2 ± 0.02 | 0.5 ± 0.01 |
9. Soil with oil concentration 80 g/kg | 0 | 0 | 0 | 0 |
10. Soil with oil concentration 80 g/kg and biopreparation | 60 | 20 ± 0.51 | 2.4 ± 0.02 | 0.3 ± 0.01 |
11. Soil with oil concentration 100 g/kg | 0 | 0 | 0 | 0 |
12. Soil with oil concentration 100 g/kg and biopreparation | 60 | 24 ± 0.56 | 2.5 ± 0.02 | 0.27 ± 0.01 |