Table 1 Details of the herbicide treatments used in the trial
Active ingredient (rate, kg ai ha −1 ) | Trade name* (rate) | Treatment code |
|---|---|---|
metsulfuron-methyl (0.10) | Escort (0.17 kg ha−1) | metsul-L |
metsulfuron-methyl (0.20) | Escort (0.33 kg ha−1) | metsul-H |
clopyralid (1.5) | Versatill (5 L ha−1) | clopyr-L |
clopyralid (3.0) | Versatill (10 L ha−1) | clopyr-H |
hexazinone (3.75) | Velpar DF (5 kg ha−1) | hexa-L |
hexazinone (7.5) | Velpar DF (10 kg ha−1) | hexa-H |
terbuthylazine (5.0) | Gardoprim 500 (10 L ha−1) | terbu-L |
terbuthylazine (10.0) | Gardoprim 500 (20 L ha−1) | terbu-H |
terbuthylazine/hexazinone (8.5/1.5) | Agpro Valzine 500 (20 L ha−1) | terbu/hexa |
triclopyr/picloram (3.0/1.0) | Tordon Brushkiller (10 L ha−1) | tric/pic |
triclopyr (6.0) | Grazon (10 L ha−1) | triclo |
untreated control | NA | untreated |