A composition comprising a carboxamide compound represented by formula (I):wherein R1represents a hydrogen atom or a methyl group, and R2represents a methyl group, a difluoromethyl group or a trifluoromethyl group, and one or more neonicotinoid compound selected from group (A) consisting of acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram thiacloprid and thiamethoxam possesses an excellent pesticidal effect.一種殺蟲組成物,其包含以式(I)表示之甲醯胺化合物:其中R1表示氫原子或甲基,及R2表示甲基、二氟甲基或三氟甲基,及一或多種選自由亞滅培(acetamiprid)、可尼丁(clothianidin)、達特南(dinotefuran)、益達胺(imidacloprid)、烯啶蟲胺(nitenpyram)、賽果培(thiacloprid)和賽速安(thiamethoxam)所組成之(A)組的新菸鹼類化合物,具有極佳殺蟲效果。
