| Weed Control | ||||||||
| Treatment | Rate | 4 WAE | 8 WAE | Density | Dry Weight | |||
| g a.i. ha−1 | % | plant # | grams | |||||
| Weedy Control | 0 | 0 | d | 2.0 | b | 5.7 | b | |
| Weed Free | 100 | 100 | a | 0.0 | a | 0.0 | a | |
| S-metolachlor | 1050 | 87 | 91 | bc | 0.3 | a | 1.5 | ab |
| Imazethapyr | 45 | 93 | 96 | a - c | 0.0 | a | 0.0 | a |
| Linuron | 1125 | 92 | 82 | c | 0.3 | a | 0.3 | a |
| Linuron | 2250 | 98 | 90 | bc | 0.0 | a | 0.0 | a |
| S-metolachlor + Imazethapyr | 1050 + 45 | 98 | 99 | ab | 0.2 | a | 0.7 | a |
| S-metolachlor + Linuron | 1050 + 1125 | 99 | 96 | a - c | 0.0 | a | 0.0 | a |
| S-metolachlor + Linuron | 1050 + 2250 | 100 | 98 | ab | 0.0 | a | 0.0 | a |
| S-metolachlor + Imazethapyr + Linuron | 1050 + 45 + 1125 | 100 | 99 | ab | 0.0 | a | 0.0 | a |
| S-metolachlor + Imazethapyr + Linuron | 1050 + 45 + 2250 | 100 | 100 | a | 0.0 | a | 0.0 | a |