| Treatment | N1/N2 | Proximal Incidence (%) | Distal Incidence (%) | Total Incidence (%) |
| Control | 4/4 | 100 | 100 | 100.00 |
| 0.5% Allspice | 4/4 | 75 | 100 | 100.00 |
| 1% Allspice | 4/4 | 25 | 100 | 100.00 |
| 2% Allspice | 2/4 | 0 | 50 | 50.00 |