The present invention relates to methods for improving the performance, or enhancing the biological activity, of a phthalimide fungicide composition by combining the phthalimide-enhancing adjuvants of the invention with the composition. The invention further provides a combination comprising phthalimide fungicide and phthalimide-enhancing adjuvant for use in the methods. The invention thus also provides methods for producing compositions comprising the combinations and methods of using the combinations and/or the compositions comprising them.

The present invention relates to a compound selected from formula (I) and a process for preparing the same ##STR00001##
wherein, R.sup.2, R.sup.3, A, Hy, K, n, m, X.sup.1, and W.sup.1 are as defined in the description. The invention also relates to the combination and composition comprising the compound of formula (I).