Diniconazole is a broad spectrum triazole germicide used to prevent plant diseases such as rust and smut. Diniconazole is a chiral chemical with one chiral center and commercial Diniconazole sold as an enantiomer mixture of R, S Diniconazole enantiomers. It has reported that R (-) Diniconazole has higher bactericidal activity, while S (+) Diniconazole shows higher plant growth regulator activity. In many cases it is important to know if environmental factors have altered the ratio of R and S Diniconazole.