Selective Control of Weeds in Proso Millet with Herbicides

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Abstract
Eight herbicide postemergence treatments were applied to proso millet (Panicum milaceum L.) at three growth stages. The dimethylamine salt of (2,4-dichlorophenoxy)acetic acid (2,4-D) at 0.56 kg/ha had significantly higher grain yields than the weedy check. All herbicides except the amine of 2,4-D at 0.28 kg/ha appeared to injure proso millet plants by varying degrees; however, yields were not greatly affected. All herbicides gave excellent control of redroot pigweed (Amaranthus retroflexus L.) when applied to proso millet in the 4 to 6-leaf stage. Weed control was poorer when spraying was delayed until proso millet was in pre-boot and post-flower stages.