An object of the present invention is to provide an isoxazole compound or a salt thereof that controls pests.The present invention provides an isoxazole compound represented by Formula (I):or a salt thereof,whereinR represents C1-6alkyl, or C1-4haloalkyl;A1and A2are identical or different and each halogen or C1-6alkyl;B1represents hydrogen, halogen or C1-6alkyl;B2represents C1-6alkyl, C1-4haloalkyl, or substituted or unsubstituted aryl C1-4haloalkyl; andn represents an integer of 0 to 2本發明之目標為提供一種控制害蟲之異㗁唑化合物或其鹽。本發明提供一種由式(I)表示之異㗁唑化合物:或其鹽,其中R表示C1-6烷基或C1-4鹵烷基;A1與A2相同或不同,且各自為鹵素或C1-6烷基;B1表示氫、鹵素或C1-6烷基;B2表示C1-6烷基、C1-4鹵烷基或經取代或未經取代之芳基C1-4鹵烷基;且n表示0至2之整數。