人工繁育异色瓢虫产卵介质的筛选试验

Screening Test of Spawning Medium Artificial Breeding Harmonia axyridis Pallas

采用棉花叶片、蚕豆苗叶片、小油菜叶片、甘蓝叶片和条状折叠纸片、蜂窝状纸片作为人工繁育异色瓢虫(Harmonia axyridis Pallas)的产卵介质,研究异色瓢虫对不同介质的趋向性。结果表明,异色瓢虫更喜欢在甘蓝叶片和折叠纸片上产卵,同时不同产卵介质上单雌产卵量、卵孵化率统计分析显示,甘蓝叶片和折叠纸片上单雌产卵量较多,而卵孵化率不存在显著差异,均在90%左右。结合产卵介质在25℃保存期研究表明,条状折叠纸片为最优产卵介质。

Using leaves of cotton,broad bean,pakchoi,cabbage,folding papers and honeycomb papers as the spawning medium of artificial breeding Harmonia axyridis Pallas,the tendency of different spawning medium were studied. Results showed that Harmonia axyridis preferred folding papers and leaves of cabbage as the spawning medium. Meanwhile, the statistical analysis showed that the egg-laying amount of per female in leaves of cabbage and folding papers were more than in others,and the egg hatching rates did not exist significant differences among six materials, all at around 90%. Combined with the result of storage at 25 ℃, folding paper was recommended as the best spawning medium.