| abstract |
The present invention relates to a herbicide that has significant herbicidal activity against undesirable plants. a pyridazinone-type compound represented by the general formula (i) (wherein x represents -o-, -s-, -so-, -so2- or -n (y) -; q represents a monocyclic aryl group which may be substituted by z, a monocyclic heteroaryl group which may be substituted by z, or the like y represents a hydrogen atom or an alkyl group z represents a halogen atom, an alkyl group or the like r1 represents an alkyl group, an alkenyl group , or similar, r2 represents a hydrogen atom, an alkyl group, or the like, r3 represents a halogen atom, a hydroxy group, or the like, r4 represents a hydrogen atom, an alkyl group, or the like, and n represents a number 0 to 4) or a salt thereof. |