Comparison between the larval observed mortality (OM %) and corrected mortality (CM %) for each tested concentration (Conc μg/larva) of lambda-cyhalothrin using a probit analysis
| Dose × 1000 (μg/larva) | Log (Dose) (X) | No of larva treated (n) | No of larva bees | Observed mortality (%) | Corrected mortality (%) | Empirical Probit (Y) | Expected probit |
|---|---|---|---|---|---|---|---|
| 0.28 | 1.447 | 60 | 14 | 23.33 | 11.53 | −1.198 | −1.521 |
| 0.55 | 1.740 | 60 | 18 | 30.00 | 19.23 | −0.869 | −0.581 |
| 0.85 | 1.929 | 60 | 35 | 58.33 | 51.92 | 0.048 | 0.024 |
| 1.10 | 2.041 | 60 | 40 | 66.66 | 61.53 | 0.293 | 0.383 |
| 1.50 | 2.176 | 60 | 46 | 76.66 | 73.07 | 0.615 | 0.815 |
| 1.70 | 2.230 | 60 | 57 | 95.00 | 94.23 | 1.574 | 0.989 |
| 0.00 | 0.00 | 60 | 8 | 13.33 | - | - | - |
Comparison between the larval observed mortality (OM %) and corrected mortality (CM %) for each tested concentration (Conc μg/larva) of fipronil using a probit analysis
| Dose × 1000 (μg/larva) | Log (Dose) (X) | No of larvae treated (n) | No of dead larvae | Observed mortality (%) | Corrected mortality (%) | Empirical Probit (Y) | Expected probit |
|---|---|---|---|---|---|---|---|
| 0.005 | 0.699 | 60 | 12 | 20.00 | 18.64 | −0.891 | −0.958 |
| 0.01 | 1.000 | 60 | 22 | 36.66 | 35.59 | −0.369 | −0.395 |
| 0.18 | 1.255 | 60 | 29 | 48.33 | 47.45 | −0.064 | 0.082 |
| 0.22 | 1.342 | 60 | 36 | 60.00 | 59.32 | 0.236 | 0.245 |
| 0.30 | 1.477 | 60 | 40 | 66.66 | 66.09 | 0.415 | 0.497 |
| 0.38 | 1.580 | 60 | 49 | 81.66 | 81.35 | 0.891 | 0.689 |
| 0.00 | 0.00 | 60 | 1 | 1.66 | - | - | - |
Insecticides and doses evaluated
| Serial No. | Insecticide | Doses (Adult) Oral toxicity | Source |
|---|---|---|---|
| 1 | Fipronil (96.7% Purity) |
| Sigma-Aldrich |
| 2 | Lambda-cyhalothrin (96.7% Purity) |
| Sigma-Aldrich |