Table 1 Effect of post-emergence herbicides on seedling survival, shoot biomass, and control of Bidens pilosa when applied at the four- and six-leaf developmental stages.
From: Seed germination ecology of Bidens pilosa and its implications for weed management
Herbicide | Rate (g ha−1) | Four-leaf stage | Six-leaf stage | ||||
|---|---|---|---|---|---|---|---|
Survival (%) | Biomass (g/plant) | Control (%) | Survival (%) | Biomass (g/plant) | Control (%) | ||
Control | 0 | 0 | 0.155 | 0 | 100 | 0.244 | 0 |
2,4-D | 1050 | 17 | 0.031 | 80 | 64 | 0.116 | 52 |
2,4-D + picloram | 375 | 15 | 0.016 | 90 | 58 | 0.143 | 41 |
Fluroxypyr | 100 | 97 | 0.070 | 55 | 100 | 0.160 | 34 |
Glufosinate | 750 | 3 | 0.002 | 99 | 18 | 0.050 | 80 |
Glyphosate | 675 | 48 | 0.011 | 93 | 100 | 0.104 | 57 |
Paraquat | 500 | 00 | 0.000 | 100 | 38 | 0.155 | 36 |
Saflufenacil* | 12 | 100 | 0.057 | 63 | 100 | 0.122 | 50 |
LSD | 19.5 | 0.030 | 16.8 | 0.100 | |||
