Pencycuron is a new production-increasing fungicide. with 500ppm of pencycuron sprayed overwheat in a normal way to prevent Gibberella,once every 7days and totally twice,the preventing effect can bebrought to 80. 29% and yield graranteeing rate is27. 33%. The result of field experiments shows that pency-curon has 8 good inhibition over Cibberella of wheat and its preventing effect is suprior to Carbendaxim
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