Abstract
Field experiments were made in 1992 and 1993 in different locations to study the effect of certain herbicides on weed control in garlic. Post-emergence application of oxyfluorfen and oxadiazon at 3–4 leaf stage resulted in garlic yield comparable to the weed-free crop. Pre-plant application of both herbicides was also effective in weed control and increased garlic yield over the other herbicide treatments. Weed biomass reduction was up to 55%. However, under rainfed conditions and with a heavy population of wild oat ( Avena sterilis L.), only oxyfluorfen increased garlic yield over the weed-infested control. Methabenzthiazuron applied pre-planting gave consistent results but a lower yield than oxyfluorfen or oxidiazon. Results with pendimethalin applied pre-planting varied between season and between locations. Other herbicides tested failed to control weeds effectively or were phytotoxic to the crop.
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