A plant disease control agent containing a compound of formula (1) (wherein, X1and X4represent a fluorine atom, a chlorine atom, or the like, X2and X3represent a hydrogen atom or the like, Xarepresents a group of formula (2) or (3), Ja and Jb represent an oxygen atom or the like, G represents a substitutable phenyl group or the like, Aa represents a substitutable alkyl group, a substitutable phenyl group, or the like, Q represents an oxygen atom or the like, and Ab represents a hetero ring group which may be substituted with a halogen atom or the like) is provided.本發明為提供一種植物病害防除劑，其係包含下述式(1)表示之化合物(式中，X1及X4表示氟原子或氯原子等，X2及X3表示氫原子等，Xa為下述式(2)或(3)表示之基，Ja、Jb表示氧原子等，G表示可被取代之苯基等，Aa表示可被取代之烷基或苯基等，Q表示氧原子等，Ab表示可被鹵素原子等取代之雜環基)。
