A pyrazoline compound represented by the formula (I):
wherein R1 represents a phenyl group which may be substituted, R2 represents a hydrocarbon group which may be substituted, R3 represents an alkyl group or the like, R4 and R5, which may be the same or different, represent a hydrogen atom or the like, A and B, which may be the same or different, represents a group CH or the like, is used as an effective ingredient of plant disease controlling agent.
由式(I)代表的
吡唑啉化合物:
其中 R1 代表可被取代的苯基,R2 代表可被取代的烃基,R3 代表烷基或类似基团,R4 和 R5(可相同或不同)代表氢原子或类似基团,A 和 B(可相同或不同)代表基团 CH 或类似基团,用作植物病害控制剂的有效成分。