PROBLEM TO BE SOLVED: To obtain a composition for controlling noxious organism comprising at least one kind of a pyridine-based compound or its salt and at least one kind of another noxious organism controller as active ingredients. SOLUTION: This composition for controlling noxious organism comprises at least one kind of a pyridine-based compound represented by general formula (I) [Y is a haloalkyl group； m is 0 or 1； Q is a group of formula (II) (X is an oxygen atom or a sulfur atom； R1 and R2 are each a hydrogen atom, a substitutable alkyl, a substitutable alkenyl, a substitutable alkynyl, a substitutable cycloalkyl, a C(W1)R3, an OR4, an S(O)nR5, an NHR6, a group of formula (III), a C(R8)=CNO-R9 or a substitutable aryl or R1 and R2 are bound to form =C(R10)R11 or may form a 5-membered or 6-membered heterocyclic group with an adjacent nitrogen atom) or a substitutable heterocyclic group] or its salt and at least one kind of another noxious organism controller as active ingredients.
