1236The present invention provides: a bipyridine compound that exhibits an excellent control effect against noxious arthropods and is represented by formula (I) [In the formula R represents a C2 C10 haloalkyl group etc. R represents a C1 C6 alkyl group etc. that may have one or more halogen atoms R represents a C1 C6 chain hydrocarbon group etc. R represents a C1 C6 alkyl group etc. that may have one or more halogen atoms n represents 0 1 or 2 and p and q each independently represent 0 1 2 or 3.]； an N oxide compound of said bipyridine compound； and a composition that contains said compound.
