123456172878+To make it possible to produce a pyridine compound represented by formula (1) that is useful as an insecticide by reacting a compound represented by formula (2) and a compound represented by formula (3). (In the formula L represents a halogen atom R R R R and R represent chain hydrocarbon groups etc. having 1 6 carbon atoms optionally substituted by fluorine atoms. A represents NR an oxygen atom or a sulfur atom A represents a nitrogen atom or =CR . R and R represent C1 6 chain hydrocarbon groups or hydrogen atoms. M represents a sodium ion a potassium ion or a lithium ion.)