The present invention is directed to agriculturally acceptable formulations comprising 2-(2,4-dichlorophenyl)methyl-4,4- dimethyl-3-isoxazolidone and/or 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone and one or more adjuvants and/or carriers, which is in the form of a microencapsulated formulation.