Table 3.
Bioassay results of the three Abamectin formulations. LC50 = lethal concentrations required to kill 50%. CL = confidence limit. DF = degree freedom. P = probability. n = number.
| Population | Insecticide | Stabilizer | LC50 (95% CL a) (ppm) | Fit of Probit Line | ||||
|---|---|---|---|---|---|---|---|---|
| Slope ± SE | χ 2 | DF | P | n b | ||||
| Lab | Abm-NPs-1 | PLGA-b-PEG | 0.42 (0.32–0.62) | 5.76 ± 0.33 | 5.95 | 3 | 0.11 | 252 |
| Lab | Abm-NPs-2 | PLA-b-PEG | 0.37 (0.32–0.48) | 6.72 ± 0.59 | 0.79 | 3 | 0.84 | 320 |
| Lab | Abm-NPs-3 | PCL-b-PEG | 0.28 (0.23–0.33) | 6.57 ± 0.33 | 3.45 | 3 | 0.32 | 352 |
a 95% confidence limit. b Number of larvae used in the bioassay.