grain sorghum, weed control, crop injury, Dual II Magnum, S-metolchlor, Huskie, Pyrsulfotole, Bromoxynil, sorghum necrosis, Palmer amaranth, green foxtail


The preemergence application of Dual II Magnum (S-metolachlor) improved the over­all weed control compared to single postemergence treatments. Excessive rainfall after preemergence application compromised all treatments, producing abnormally low weed control.


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