Provided are a fly attractant composition containing a ligninsulfonate as an active ingredient, and a fly expellant composition containing 5 to 20% by weight of a ligninsulfonate and at least 0.1% by weight but less than 5% by weight of an insecticidal active ingredient.提供一種含有木質素磺酸鹽作為活性成分之蠅之誘引組成物,以及一種含有5至20重量%之木質素磺酸鹽以及至少0.1重量%但少於5重量%之殺蟲活性成分之蠅之驅除組成物。因本案圖式為試驗用裝置示意圖,並不適於作為代表圖,故本案無指定代表圖。