Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R
1
, X
1
, X
2
, X
3
, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
提供了一个由通式(1)表示的多环
吡唑酮衍
生物(在该式中,R1、X1、X2、X3和Y表示规范中提供的定义),以及包含其作为有效成分的
除草剂。