Provided is an agricultural composition comprising a compound represented by the formula (I) or a salt thereof or a hydrate thereof, for controlling a plant disease due to a plant pathogen:[wherein, G represents a di-valent aromatic hetero 5-membered ring optionally having a halogen atom or C1 to 3 alkyl group (with the proviso that a hetero atom of the aromatic hetero 5-membered ring is a nitrogen atom, oxygen atom or sulfur atom), R1 represents a hydrogen atom or amino group, R2, R3 and R4 represent each independently a hydrogen atom or the like, and E represents an optionally substituted 5 to 10-membered heterocyclic group or C6-10 aryl group.].