A novel guanidine compound having excellent fungicidal activity is represented by the formula [I] (wherein Y is a group represented by the following formula [II]: wherein R7~ R9Each independently represents a hydrogen atom or the like), and the like, X and Z each independently represent an unsubstituted or substituted alkylene group or the like, Q1And Q2Each independently represent a single bond or the like, and A1And A2Each independently represent an unsubstituted or substituted bivalent heterocyclic compound residue and the like, and R1~ R6Each independently represent a hydrogen atom or the like.Embedded image優れた殺菌活性を有する新規なグアニジン化合物は、式〔I〕で表される(式中、Yは、下記式〔II〕(式中R7~R9は、それぞれ独立に、水素原子等を示す)等で示される二価の基を示し、XおよびZはそれぞれ独立に無置換の若しくは置換基を有するアルキレン基などを示し、Q1およびQ2はそれぞれ独立に単結合などを示し、A1およびA2はそれぞれ独立に無置換の若しくは置換基を有する二価の複素環式化合物残基などを示し、R1~R6はそれぞれ独立に水素原子などを示す。【化1】
