| Zone of Inhibition (mm) | Control Drugs (%) | G. kola (%) | B. pinnatum (%) | A. sativum (%) | ||||||||||||||
| Gen | Spa | Ery | 10 | 25 | 50 | 75 | 100 | 10 | 25 | 50 | 75 | 100 | 10 | 25 | 50 | 75 | 100 | |
| R (≤12) | 20 | 30 | 30 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 0 | 0 | 100 | 100 | 0 | 0 | 0 |
| I (13 - 14) | 20 | 10 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 |
| S (≥15) | 60 | 60 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 80 | 100 | 0 | 0 | 100 | 100 | 100 |