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桑天牛成虫出现盛期6月下旬7月初;雌雄比为1:1.3;多次交尾,交尾前期4—6天;孵化率在64%以上.~(6O)Cor辐照对雄虫寿命及交尾的影响,没有对可育率的影响显著.经1.9万伦琴处理的饲养雄虫,寿命及交尾变化不大,可育率却明显降低仅为9%,而且子代幼虫死亡率极高.
Adult Morus alba adult appeared in late June and early July, the male / female ratio was 1: 1.3, multiple mating, 4-6 days early mating, and the hatching rate was over 64% The effect of mating was not significant on fertility rate.Even male mice treated with 19 000 roentgen had little change in longevity and mating, fertility rate was significantly reduced by only 9%, and the mortality rate of offspring larvae was extremely high.