FUNGICIDAL COMPOSITIONS, APPLICATION, PROCESSES TO COMBAT FUNGAL CAUSERS OF CEREAL DISEASES AND FOR THE PREPARATION OF COMPOSITIONS

摘要

Fungicidal agents for use on cereal crops, comprise at least one substituted 5-t-buty(-1,3,4-thiadiazol-2-yl-urea of the formula IMAGE in which R represents t-butyl which is monosubstituted or polysubstituted by halogen, R1 and R2 independently of one another represent hydrogen or alkyl and R3 represents alkyl or halogenoalkyl. The fungicide, optionally admixed with a diluent or carrier, is applied, in an amount sufficient to combat the fungus without killing the grain, immediately before sowing or during growth of the cereal. Alternatively, the fungicide may be applied to the cereal seed.