The present invention provides a pesticide comprising an aryloxyacetamide compound represented by formula (IV) (wherein in formula (IV), R1a represents an alkyl group or the like, R2 to R5 independently represents an alkyl group, X represents a halogen atom or the like, n represents an integer of 0 to 5, Z represents an oxygen atom or a sulfur atom) or salt thereof as an active ingredient.
