Fig. 2

Reproductive schedules of cotton aphid under short-day condition. a Daily number of GPe and males produced by parthenogenetic females, which were reared under short-day condition from newly-born stage at 18 °C and a photoperiod of 8 L:16D. b Number of GPe and males produced by each parthenogenetic female at 18 °C and a photoperiod of 8 L:16D (n = 8)