›› 2014, Vol. 57 ›› Issue (3): 365-372.doi:

• 综述 • 上一篇    下一篇


(1.  西南大学植物保护学院,昆虫学及害虫控制工程重庆市市级重点实验室,重庆 400716; 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研究室,北京 100193)   

  1. SUN Li-Ying1,2, YANG Nian-Wan2, WANG Jin-Jun1, WAN Fang-Hao2,*
  • 出版日期:2014-03-20 发布日期:2014-03-20

Reproductive traits of autoparasitoids and their influences on biological control

孙丽影1,2, 杨念婉2, 王进军1, 万方浩2,*   

  1. (1. Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China; 2. State Key Laboratory for Biology of Pant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China)
  • Online:2014-03-20 Published:2014-03-20

摘要: 自复寄生蜂营雌雄异律发育,雌蜂为初级寄生蜂,雄蜂为复寄生蜂。依据寄主类型产下的相应性别的后代,其性比受到寄主数量、初级寄主与二级寄主的相对丰度等因素影响。自复寄生蜂能够寄生和取食初级寄主,抑制有害昆虫的种群数量,同时能够寄生和取食同种和异种寄生蜂幼虫,产生致死干扰竞争作用。复寄生二级寄主时,易感时间窗口主要集中在老熟幼虫至预蛹阶段。与同种二级寄主相比,自复寄生蜂更倾向于寄生异种二级寄主或无选择倾向性,取食时,更倾向于异种二级寄主。自复寄生蜂特殊的生殖方式使其对生物防治的影响备受争议。在评价其生物防治价值时,应对其正面影响和负面影响做出全面权衡。本文对自复寄生蜂的生殖特性、对同种和其他种类寄生蜂产生的致死干扰竞争作用及其对生物防治的影响等问题的国内外研究进展进行了综述,以期为利用这种天敌资源开展有害生物综合治理提供依据。

关键词: 自复寄生蜂, 繁殖, 性比, 二级寄主选择倾向性, 易感时间窗口, 寄主取食, 生物防治

Abstract: Autoparasitoids (heteronomous hyperparasitoids) are parasitoids whose males and females are parasitic in different species of hosts. Female eggs develop as obligate primary parasitoids, while male eggs develop as hyperparasitoids. The sex ratio of offsprings produced by females depending on the type of hosts is affected by host density, as well as the relative abundance of the primary and secondary hosts. Autoparasitoids can suppress the population of pests by parasitizing and feeding on the primary hosts. Also they can parasitize and feed on the hosts that have been parasitized by conspecific or heterospecific females, leading to the lethal interference competition. The window of secondary hosts for hyperparasitizing is at late instar larval to prepupal stage. Autoparasitoids prefer to hyperparasitize and feed on heterospecific hosts than conspecific hosts or have no obvious parasitization tendency. As a result, the specific reproductive pattern has led the application of autoparasitoids in biological control to become the focus of controversy. We should evaluate both the positive and negative influences caused by autoparasitoids before using it in biological control. In this article, we reviewed the recent advances on the reproductive traits of autoparaitoids, lethal interference competition effects on secondary hosts, and their influences on biological control. This will provide a theoretical foundation for the optimum use of autoparasitoids in integrated pest management.

Key words: Autoparasitoids, reproduction, sex ratio, secondary host selection, vulnerability window, host feeding, biological control