[PROBLEMS) The present invention provides a novel alkoxyimino derivative or a salt thereof, as well as to a pest control agent containing the derivative or salt thereof as an active ingredient, which shows an excellent pest control effect on a wide range of pests in the agricultµral and horticultural field and is also capable of controlling resistant pests. [MEANS FOR SOLVING PROBLEMS) The novel alkoxyimirio derivative .is. characterized by being represented by general formula [I] [Chemical formula 1) (in the formula, X, R¹, R² and Q are as defined in the specification) and the post control agent is characterized by containing as an active ingredient the alkoxyimino derivative or a salt thereof.
