To provide a compound highly active against pests, a pesticide using the compound, and a method for controlling pests by applying the compound. A phenoxyalkylbenzamide compound represented by the formula (I) or its salt； a pesticide containing it as an active ingredient, and a controlling method, which comprises applying an effective amount of the compound: wherein R 1 , Y and R 3 are a hydrogen atom or the like, and Ar is as follows: wherein R 4 and R 7 are halogen or the like, R 5 and R 6 are a hydrogen atom or the like, m is from 0 to 5, and n is from 0 to 3.
