The present invention relates to a pest control composition comprising: a compound represented by formula (1) tricyclazole and at least one type of compound selected from group (A) consisting of flutolanil, pencycuron, N-[2-(1,3-dimethylbutyl)phenyl]-1,3-dimethyl-5-fluoro-1H-pyrazole-4-carboxamide, furametpyr, and validamycin A. This pest control composition has excellent efficacy in controlling pests.本發明係關於含有式(1)所示之化合物、三賽唑以及由群(A)選出的1種以上之化合物的有害生物防治組成物。群(A):福多寧、戊菌隆、N-〔2-(1,3-二甲基丁基)苯基〕-1,3-二甲基-5-氟-1H-吡唑-4-羧醯胺、呋吡菌胺及井岡黴素A所成之群。本發明之有害生物防治組成物係對於有害生物具有優異的防治效力。