PROBLEM TO BE SOLVED: To provide a pest control composition that has an excellent pesticidal activity as well as that has no problem on safety, and to provide a use method thereof.SOLUTION: Provided are: a mite control agent composition containing, as an active ingredient, a substituted phenyl ether compound represented by the following formula (1) and 1 kind or 2 kinds or more compound selected from compounds having insecticidal activity, acaricidal activity； and a use method of a mite control agent composition characterized by treating pest, useful plant, seeds of useful plant, soil or cultivation carrier with said mite control agent composition.SELECTED DRAWING: None【課題】 優れた有害生物防除活性を有し、かつ安全性に問題のない有害生物防除組成物およびその使用方法を提供。【解決手段】 下記式（１）で表される置換フェニルエーテル化合物と殺虫活性、殺ダニ活性を有する化合物から選択される１種または２種以上の化合物とを有効成分として含むダニ防除剤組成物、および当該ダニ防除剤組成物を有害生物、有用植物、有用植物の種子、土壌または栽培担体に処理することを特徴とするダニ防除剤組成物の使用方法。 【化１】【選択図】なし
