The present invention provides an agricultural fungicide having definitive effects which can be safely used, and a pyridine compound or salts thereof useful as an active ingredient of an agricultural fungicide. The pyridine compound or salts thereof of the present invention are represented by the following formula. In the formula, R1 represents a formyl group or the like, R2 represents a hydrogen bond or the like, each of R3, R4, and R5 independently represents a hydrogen atom, E represents a phenyl group or the like, A represents a halogen atom, and n is any integer of 0 to 5.
