| No. | Code | Treatment | 1 WAT | 2 WAT | 3 WAT | 4 WAT |
| Visual injury (%) | ||||||
| 1 | ME | Mesotrione | 25c3† | 40c2 | 44d1 | 45d1 |
| 2 | ME + TR | Mesotrione + Triclopyr | 85a2 | 98a1 | 100a1 | 100a1 |
| 3 | TO | Topramezone | 28c4 | 43c3 | 55c2 | 66c1 |
| 4 | TO + TR | Topramezone + Triclopyr | 87a2 | 97a1 | 100a1 | 100a1 |
| 5 | TR | Triclopyr | 82b2 | 92b1 | 94b1 | 91b1 |
| 6 | UC | Untreated control | 0d1 | 0d1 | 0e1 | 0e1 |