Economics of Weed Control in Peanuts (Arachis hypogaea) with Herbicides and Cultivations

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Abstract
The effectiveness and profitability of weed control with herbicides and cultivation were determined in peanuts (Arachis hypogaea L. ‘Florunner′) infested with Texas panicum (Panicum texanum Buckl. # PANTE), sicklepod (Cassia obtusifolia L. # CASOB), and pitted morningglory (Ipomoea lacunosa L. # IPOLA). Highest peanut yield (4260 kg/ha) and net returns were achieved in 2 of 3 yr with benefin [N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)benzenamine] applied preplant incorporated followed by alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl) acetamide] and dinoseb [2-(1-methylpropyl)-4,6-dinitrophenol] plus naptalam {2-[(1-naphthalenylamino)carbonyl] benzoic acid} applied at ground cracking, with two timely cultivations. Systems utilizing herbicides alone did not provide highest net returns, peanut yield, or weed control.