[Objectives] To determine if herbivore-induced plant volatiles can enhance the biocontrol of the cereal aphid (Sitobion avenae) in wheat fields by attracting their natural enemy, the multicolored Asian ladybeetle (Harmonia axyridis). [Methods] The olfactory responses of adult Asian ladybeetles to undamaged wheat seedlings, wheat seedlings that had been fed on by cereal aphids and to synthetic (cis)-3-hexenyl acetate, were measured and compared. In addition, the effect of applying (cis)-3-hexenyl acetate to wheat fields on both ladybeetle and cereal aphid populations was investigated. [Results] The emission rate and relative content of (cis)-3-hexenyl acetate emitted by wheat seedlings increased after these had been fed on by cereal aphids. Both wheat seedlings that had been fed on by cereal aphids and (cis)-3-hexenyl acetate were strongly attractive to adult ladybeetles. Applying (cis)-3-hexenyl acetate to wheat fields attracted ladybeetles and decreased wheat aphid abundance. [Conclusion] The herbivore-induced plant volatile, (cis)-3-hexenyl acetate, has the potential to attract the multicolored Asian ladybeetle, thereby enhancing the biocontrol of cereal aphids in wheat fields.