A harmful arthropod control composition comprising flonicamid, one or more Delphacidae control compounds selected from Group (A), and one or more rice blast disease control compounds selected from Group (B):Group (A): a group consisting of clothianidin, imidacloprid, dinotefuran, thiamethoxam, fipronil and pymetrozine.Group (B): a group consisting of isotianil, probenazole, tiadinil, tricyclazole, pyroquilone, thiophanate-methyl, orysastrobin and azoxystrobin.
