Now a compound for pest control is available. 1. Characteristic 1: a tetrazolium compound in formula (1),Q represents a group of members selected from the formula group (2)；R1,R2,R3 and R1 represent the independence between them,a hydrogen atom, a halogen atom, a cyano group, a nitro group, an amino group, a hydroxy group, a thiol group, a C₂₋₆ alkenyl group,a haloalkenyl group C grupo,a C₂₋₆ alkynyl group,a haloalkynyl group C₂₋₆,One alcoxi c83217c831832626,a haloalkoxy group C₁₋₆,a C₁₋₈-alkyl alkyl group, a C₁₋₈-amino haloalkyl group, a C₁₋₆-thio alkyl group, a C₁₋₆-thio alkyl alkyl group, a C un-sulfinyl alkyl group, a C₁₋ haloalkyl group Sul-sulfinyl, a C₁₋₆-sulfonyl alkyl group, a C₁₋₆-sulfonyl haloalkyl group, a pentafluorosulfanyl group, a C₃₋₉-silyl trialkyl group, a C₂₋₆-carbonyl alkyl group, a C₂₋₆ alkoxy group -carbonyl, a C₂₋₈-aminocarbonyl alkyl group, a C₁₋₆ alkyl group that optionally has one or more groups selected from the group or a C₃₋₆ cycloalkyl group that optionally has one or more groups selected from the group P¹；R83088 and r830909 respectively represent:a hydrogen atom, a halogen atom or a C₁₋₃ alkyl group；R8310 represents a cyclo-c83231；a C₂₋₄ alkynyl group,a haloalkynyl group C₂₋₄,a haloalkoxy group C₁₋₄,a C₁₋₄-thio alkyl group, a C₁₋₄-sulfinyl alkyl group, a C₁₋₄-sulfonyl alkyl group, a C₁₋₄-thio haloalkyl group, a C₁₋₄-sulfinyl haloalkyl group, a C₁₋ haloalkyl group ₄-sulfonyl, a C₁₋₆-amino alkyl group, a C₁₋₆-amino haloalkyl group or a C₃₋₆ halocycloalkyl group；R8311th,R831222 and r8313 respectively represent:a. One hydrogen atom, one halogen atom, one c832131 tar group；a haloalkyl group C₁₋₃,a C₂₋₃ alkenyl group,a C₂₋₃ haloalkenyl group or a C₁₋₃ alkoxy group；R830404 represents a c83218331c8323；a haloalkyl group C₁₋₃,a C₂₋₃ alkenyl group,a haloalkenyl group C grupo,a C₂₋₃ alkynyl group,a haloalkynyl group C₂₋₃,a C₃₋₅ cycloalkyl group or a C₃₋₅ halocycloalkyl group；X stands for oxygen or sulfur； A1 and A3 stand for each other independen
