Field experiments were conducted in 1991 and 1992 in Georgia to determine the efficacy of DPX-PE350 when applied either preplant incorporated (PPI), preemergence (PRE), and early postemergence (EPOST) at rates of 40, 80, or 120 g ae ha-1 for weed control in peanut. Species evaluated included coffee senna Cassia occidentalis (L.), Florida beggarweed Desmodium tortuosum (Sw.) DC., prickly sida (Sida spinosa L.), smallflower morningglory Jacquemontia tamnifolia (L.) Griseb., sicklepod (Cassia obtusifolia L.), and yellow nutsedge (Cyperus esculentus L.). Sicklepod was controlled better with either PPI or PRE applications than with EPOST. Coffee senna control was more consistent with DPX-PE350 applied EPOST. DPX-PE350 controlled prickly sida and smallflower morningglory regardless of application method and rate. DPX-PE350 did not control Florida beggarweed when soil applied. PPI applications were more injurious to peanut than PRE or EPOST applications. Peanut yields tended to decrease as DPX-PE350 rates increased.
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Keywords: Acifluorfen, bentazon, paraquat, pendimethalin, 2, 4-DB, application method, Cassia obtusifolia, Cassia occidentalis, Cyperus esculentus, Desmodium tortuosum, Jacquemontia tamnifolia, Sida spinosa
How to Cite:
Jordan, D. & Wilcut, J. & Richburg, J., (1993) “DPX-PE350 for Weed Control in Peanut (Arachis hypogaea L.)”, Peanut Science 20(2), p.97-101. doi: https://doi.org/10.3146/i0095-3679-20-2-8