饲养黄曲条菜跳甲实验种群的一种新方法.pdfVIP

　5·78 · 昆虫知识 　Chinese Bulletin of Entomology 2005 42 (5) 技术与方法 饲养黄曲条菜跳甲实验种群的一种新方法 刘 　芸 　尤民生 　侯有明 (福建农林大学应用生态研究所　福州　350002) A new method of rearing the laboratory population of striped flea beetle , Phyllotreta striolata . LIU Yun , YOU MinSheng , HOU YouMing ( Institute of Applied Ecology , Fujian Agriculture and Forestry University , Fuzhou 　 350002 ,China) . Abstract 　A new method of rearing the laboratory population of striped flea beetle ( SFB) , Phyllotreta striolata , is introduced. The SFBs were reared with a whole plant caged in a bottle. Five cruciferous plants were tested in rearing the SFB overwintering generation by this method for 11 months. The result showed that SFBs could complete their life cycle on all the tested plants , but the highest survival rate of larvae was gained on Raphanus sativus with 63. 3 % , while the longest longevity and highest fecundity of the adults were obtained on Brassica alboglabra , with 219. 2 days and 192. 4 eggs per female on avearage respectively. Key words 　Phyllotreta striolata , rearing method , survival rate , fecundity 摘　要 　介绍一种简便可行的饲养黄曲条菜跳甲 Phyllotreta striolata ( F. ) 的新方法 ———整苗大瓶罩养 法。用 5 种植物根部饲养越冬代 ,黄曲条菜跳甲均可成功地完成其生活周期 ,未成熟期最高存活率为 633 % ,成虫平均寿命最长为 2192 d ,平均产卵量最大为 1924 粒雌。 关键词 　黄曲条菜跳甲 , 饲养方法 , 存活率 , 繁殖力 　　黄曲条菜跳甲 Phyllotreta striolata (F. ) 隶属 的植株根部或整株的新鲜。培养皿以刺孔的保 鞘翅目 ,叶甲科 ,是十字花科蔬菜的主要害虫之 鲜膜封罩 ,则过湿 ,容易导致植株根部或叶部霉 一。黄曲条菜跳甲成虫取食植物叶片 ,其体小 , 烂 ;不封罩 ,则易导致植株根部过干 ,两者均会 会飞 ,善跳 ,性极活泼 ,室内饲养过程中极易逃 引起幼虫逃逸或死亡。通过反复尝试、比较 ,考 逸。雌虫在田间将卵散产或成小块产于茎基部 虑到以下 3 个方面的因素 :饲料新鲜、适当的环 或土表根系间 , 卵粒微小 ,长约 042 mm , 宽约 境温湿度、避光以免幼虫逃逸 ,设计出“整苗大 027 mm[1] 。幼虫孵化后主要在地表下0～10 cm