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

Abstract

The effectiveness and profitability of weed control with herbicides and cultivation were determined in peanuts (Arachis hypogaeaL. ‘Florunner′) infested with Texas panicum (Panicum texanumBuckl. # PANTE), sicklepod (Cassia obtusifoliaL. # CASOB), and pitted morningglory (Ipomoea lacunosaL. # 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.