Biology Fang Chu Group are at object As purposes for the You of the bright Yi Ti Gong Hair Play Gifted Iso plant disease controls effects of this Hair and/or Kill Insect effects evils. According to According, this Hair is bright, can Enough provide with containing general expression (1) indicates Twin amine derivatives and by other Kill bacterium Elixirs, Kill Insect Elixirs, Kill ?Elixirs institutes Agencies in groups 1 Seed or more compounds When of Zhong Election Select make effective component As characteristics You do harm to biology Fang Chu Group at object. [in formula:1 ~ 6 Hydrocarbon of carbon atom Number etc. that R1 As Bei Halogen element atoms replaceEach As Independence of R2 With R7 vertical 1 ~ 6 Hydrocarbon of Hydrogen atoms or carbon atom Number etc.3 ~ 6 Ring alkyl of carbon atom Number of each As Independence of R3 With R4 vertical Hydrogen atoms or 1 ~ 6 Hydrocarbon of carbon atom Number that can be substituted etc. or Han You Key Knot carbon atomsEach As Independence of R5 With R6 vertical 1 ~ 6 Hydrocarbon of Hydrogen atoms or carbon atom Number etc.Aralkyl that R8 As can be substituted, the aryl that can be substituted can be substituted Miscellaneous aryl. ]本發明以提供發揮優異植物病害防除效果及/或殺蟲效果之有害生物防除組成物為目的。依據本發明,能夠提供以含有一般式(1)表示之雙胺衍生物及由其他殺菌劑、殺蟲劑、殺蟎劑所構成群中選擇1種以上化合物當作有效成分為特徵之有害生物防除組成物。[式中:R1為被鹵素原子取代之碳原子數1~6之烴等;R2與R7各為獨立之氫原子或碳原子數1~6之烴等;R3與R4各為獨立之氫原子或可被取代之碳原子數1~6之烴等,或含有鍵結碳原子之碳原子數3~6之環烷基;R5與R6各為獨立之氫原子或碳原子數1~6之烴等;R8為可被取代之芳烷基、可被取代之芳基或可被取代之雜芳基。]