A pest control agent comprising an aromatic compound represented by formula fl) wherein R1 represents a C1-C4 alkyl group, etc. R3 represents a hydrogen atom, etc. R7 represents a C1-C3 alkyl group, etc. T represents the following group Tl, T2, or T3 Z represents a halogen atom, etc. Z3 represents a C1-C3 alkyl group, etc. Q represents the following group Ql, Q2, or Q3 R5 represents a C1-C3 alkyl group, etc . R1 ° represents a hydrogen atom, etc. R11 represents a hydrogen atom, etc. X1 represents an oxygen atom, etc. X" represents a direct bond, etc. and R1" represents a C1-C3 alkyl group, etc. has excellent control activity.