duration of diapause
1.Under 26 C and 16 hours photoperiod conditions, the post-diapause development duration (PDDD) of overwintering generation Asian corn borer (ACB) Ostrinia furnacalis (Guenee) of univoltine ecotype in Gongzhuling and Dunhua and bivoltine eco-type in Gongzhuling and Baicheng, Jilin Province were 48. 48 and 44. 43, and 28. 29 and 22. 42 days, respectively.
