The invention provides a pest control agent excellent in safety, control effect, residual effect and the like.Containing a pyrazole derivative represented by the general formula [I] or an agriculturally acceptable salt thereof,In the formula, p represents an integer of 0 or 1. R 1 , R 2 , R 3 , R 4 and R 5 represent a hydrogen atom, a halogen atom, a C 1 to C 6 alkyl group, etc., A represents an oxygen atom or a sulfur atom, and Q Represents a halogen atom, an unsubstituted or (R 8 ) m substituted C 6 to C 10 aryl group, etc., and R 6 and R 7 represent a hydrogen atom, a C 1 to C 6 alkyl group, and the like； and those containing it as an active ingredient Pest control agents.本發明提供一種安全性、防治效果、殘效性等優異的有害生物防治劑。一種含有通式[I]所示之吡唑衍生物或其農業上可接受的鹽，式中，p表示0或1之整數，R1、R2、R3、R4及R5表示氫原子、鹵素原子、C1~C6烷基等，A表示氧原子或硫原子，Q表示鹵素原子、未取代的或經(R8)m取代的C6~C10芳基等，R6及R7表示氫原子、C1~C6烷基等；以及含有其作為活性成分的有害生物防治劑。
