author keywords: Bromoxynil, 3,5-dibromo-4-hydroxybenzonitrile; clethodim, (E,E)-(+/-)-2-[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one; fenoxaprop-P, (R)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoic acid; fluazifop-P, (R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid; quizalofop-P, (R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acid; sethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one; large crabgrass, Digitaria sanguinalis (L.) Scop. # DIGSA; cotton, Gossypium hirsutum L, 'Stoneville BXN 47'; antagonism; herbicide-tolerant crops; DIGSA