Provided is a composition having an excellent effect for controlling the harmful arthropod, comprising flonicamid, at least one insect growth regulation compound selected from group (A), and at least one sheath blight preventing compound selected from group (B).group (A): the group consisting of methoxyfenozide, tebu fenozide and chromafenozide, group (B): the group consisting of flutolanil, pen cycuron, N-[2-(1,3-dimethylbutyl)phenyl]-5-fluoro-1,3-dimethyl-1H-pyrazole-4-carboxamide, furametpyr and validamycin A.含有氟尼胺及由群(A)所選的1種以上的昆蟲成長控制化合物,及由群(B)所選的1種以上的紋枯病防治化合物的有害節肢動物防治組成物對於有害節肢動物有優異的防治效力。群(A):由滅芬諾、得芬諾及可芬諾所成的群。群(B):由富多寧、賓克隆、N-[2-(1,3-二甲基丁基)苯基]-5-氟-1,3-二甲基-1H-吡唑-4-甲醯胺、福拉比及維利黴素A所成的群。
