Abstract
Abstract The three investigated populations of migratory locust, Locusta migratoria L. (Orthoptera, Acrididae), reported in this paper show significant variation in diapause characteristics. The insects of the Heshuo Xinjiang population show diapause in egg stage regardless of the photoperiod of rearing condition, while the adults of the Beidagang Tianjin and the Hami Xinjiang populations produce diapause or nondiapause eggs according to the short or long photoperiod. From this research, we infer altitude plays an important role in inducing diapause. The long photoperiod which extends the duration of pre‐oviposition period and reduces the oviposition frequency in the Beidagang and Hami populations shows no effect on those features of the Heshuo population. The duration at low temperature to end diapause in the Heshuo population is longer than that in the other two populations.
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