TATA CARA UNTUK MEMPERBAIKI KESEHATAN TANAMAN PISANGTreatment for cercosporiosis of bananas comprises application of a cpd. A to the aerial parts of the plants. A = mono-, di- or tri-valent cation salts of a mono-alkyl phosphite, e.g. Fosetyl-Al (aluminium tris-O-ethyl phosphonate), or...