Azoxystrobin was produced by the Basidiomycetes fungus, Strobilurus tenacellus (Pers. ex Fr.) Singer, having novel mode of action . Its fungicidal activity results from the inhibiting mitochondrial respiration of higher fungi, which is achieved by the prevention of Electron transfer between cytochrome b & cytochrome c . Because of its novel mode of action , Azoxystrobin is effective against pathogens which have developed reduced sensitivity to other fungicides.