For many years, many pest control agents have been used but have various problems such as an insufficient efficacy, and a restricted usage because harmful insects and the like acquire resistance. Thus, there is a demand for developing a novel pest control agent having few such disadvantages. The purpose of the present invention is to provide a compound or a salt thereof which is highly active against pests. The present invention relates to: an N-(4-pyridyl) nicotinamide compound represented by formula (I)； or a salt thereof. [In formula (I), each substituent is referred to in the description]
