Table 3: The state of D. veneta vermin populations in diesel-contaminated soils (Experiment 3) 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 ± 0.01 | 1.5 ± 0.01 |
| 2. Microbiological preparation | 100 | 95 ± 2.05 | 15.4 ± 0.2 | 2.1 ± 0.02 |
| 3. Soil with diesel concentration 20 g/kg | 60 | 36 ± 1.02 | 6.2 ± 0.05 | 1.15 ± 0.01 |
| 4. Soil with diesel concentration 20 g/kg and biopreparation | 50 | 18 ± 0.2 | 2.5 ± 0.02 | 0.5 |
| 5. Soil with diesel concentration 40 g/kg | 0 | 0 | 0 | 0 |
| 6. Soil with diesel concentration 40 g/kg and biopreparation | 0 | 0 | 0 | 0 |