A MOLECULAR COMPLEX OF HEXACONAZOLE AND IMIDACLOPRID AND A PROCESS FOR PRODUCTION THEREOF A pesticidal formulation comprising a molecular complex of hexaconazole and imidacloprid, having a melting point of around 105?C measured as a single melting endotherm by differential scanning calorimetry is disclosed. A process for the preparation of a molecular complex of hexaconazole and imidacloprid, is also disclosed.