Diapause hormone (DH) is the hormone that can induce diapause of egg. DH activity may be widely distributed, only in Bombyx mori (silkworm), among the insects studied, has this peptide been captured as a regulator of diapause (Denlinger,2002).

• 滞育激素(DH)是诱导卵滞育的激素，最近的研究表明，DH活性可能广泛存在于昆虫中，但在已研究的昆虫中，其只在家蚕中作为滞育的调控子(Denlinger，2002)。