欢迎访问中国生物防治学报,今天是

• 研究报告 • 上一篇    下一篇

海氏桨角蚜小蜂对不同龄期Q隐种烟粉虱和温室白粉虱的取食和寄生选择

戴鹏1, 刘林州1, 臧连生1, 张俊杰1, 阮长春1, 万方浩2   

  1. 1. 吉林农业大学生物防治研究所/天敌昆虫应用技术工程研究中心, 长春 130118;2. 中国农业科学院植物保护研究所/植物病虫害生物学国家重点实验室, 北京 100193
  • 收稿日期:2013-03-25 修回日期:1900-01-01 出版日期:2014-02-08 发布日期:2014-02-08
  • 通讯作者: 臧连生,研究员,E-mail:lsz0415@163.com;万方浩,研究员,E-mail:wanfangh@public3.bta.net.cn。

Host Feeding and Parasitism Preference in Eretmocerus hayati for Nymphs between Q Sibling Species of Bemisia tabaci and Trialeurodes vaporariorum

DAI Peng1, LIU Linzhou1, ZANG Liansheng1, ZHANG Junjie1, RUAN Changchun1, WAN Fanghao2   

  1. 1. Engineering Research Center of Natural Enemy Insects/Institute of Biological Control, Jilin Agricultural University, Changchun 130118, China;2. Key Laboratory for Biology of Plant Disease and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2013-03-25 Revised:1900-01-01 Online:2014-02-08 Published:2014-02-08

摘要: 许多粉虱寄生蜂雌蜂对粉虱若虫的攻击方式不仅是寄生,而且还能取食。本文以海氏桨角蚜小蜂Eretmocerus hayati作为测试寄生蜂,Q隐种烟粉虱和温室白粉虱作为寄主,在非选择和双向选择条件下调查了寄生蜂对寄主的取食和寄生选择性。研究结果表明,非选择试验条件下,海氏桨角蚜小蜂48 h内取食1~4龄烟粉虱和温室白粉虱若虫的数量分别为10.7、6.4、6.7、5.0头和4.4、3.7、2.8、2.3头,寄生1~4龄烟粉虱若虫的数量分别为22.1、27.5、25.4、16.5头,但不能寄生各龄期温室白粉虱若虫;而在选择试验条件下,寄生蜂取食1~4龄烟粉虱若虫的数量分别为同龄期温室白粉虱若虫数量的1.8、2.6、2.5、1.5倍。说明寄生蜂的取食寄主能力明显受寄主种类和龄期的影响。海氏桨角蚜小蜂更适合用来防治烟粉虱,但不适于防治温室白粉虱。

Abstract: Many species of parasitoids not only parasitize whitefly hosts but can also feed them. Host feeding and parasitism preference in Eretmocerus hayati for nymphs of Bemisia tabaci Q biotype and Trialeurodes vaporariorum was studied under no-choice and paired-choice conditions. In no-choice test, the number of 1st to 4th instar nymphs of B. tabaci predated by a female E. hayati in 48 h was 10.7, 6.4, 6.7, and 5.0, respectively, and the number of 1st to 4th instar nymphs parasitized was 22.1, 27.5, 25.4, and 16.5, respectively. In contrast, the number of 1st to 4th instar nymphs of T. vaporariorum fed by a female E. hayati in 48 h was 4.4, 3.7, 2.8, and 2.3, respectively, and no nymphs was parasitized. In paired-choice test with the same stage nymphs of B. tabaci and T. vaporariorum, the number of 1st to 4th nymphs of B. tabaci fed by E. hayati was 1.8, 2.6, 2.5, and 1.5 folds more than those of T. vaporariorum, respectively. These results indicate that whitefly host species and host stage affect host feeding and parasitism capacity of parasitoids. E. hayati has the potential to be used as a bio-control agent for control of the invasive whitefly B. tabaci, but not for the indigenous whitefly T. vaporariorum.

中图分类号: