Melody Duo is a modern fungicide containing the two active ingredients Iprovalicarb and Propineb. It provides excellent control of a broad range of fungal species from Oomcytes class (e. g. Plasmospora viticola, Phytophthora spp., Pseudoperonospora spp., Peronospora spp.) with high plant compatibility. The major crops in which Melody Duo can be effectively used are those in which Downy mildew and Late blight are economically damaging viz. grapes and potato.