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Position: Home > Articles > Control efficiency of Aenasius bambawalei Hayat(Hymenoptera:Encyrtidae) on Phenacoccus solenopsis Tinsley(Hemiptera:Pseudococcidae) Wuyi Science Journal 2014 146-153

班氏跳小蜂对扶桑绵粉蚧的寄生效能

作  者:
高原;黄建;王竹红;温玉琪;钟顺
单  位:
福建农林大学植物保护学院;农业部闽台作物有害生物综合治理重点实验室
关键词:
班氏跳小蜂;扶桑绵粉蚧;自然种群生命表;控制作用
摘  要:
班氏跳小蜂Aenasius bambawalei Hayat是扶桑绵粉蚧Phenacoccus solenopsis Tinsley的重要寄生蜂。本文研究了在不同蜂蚧比条件下,班氏跳小蜂对扶桑绵粉蚧的寄生效能,并组建扶桑绵粉蚧自然种群生命表,采用种群趋势指数(I)、干扰作用控制指数(IIPC)和排除作用控制指数(EIPC),分析班氏跳小蜂对扶桑绵粉蚧的控制作用。研究结果表明,当蜂蚧比为2:50时,班氏跳小蜂寄生率最高,达92%;而班氏跳小蜂密度过高或过低均会导致寄生率下降。采用I分析,与对照区相比,放蜂区扶桑绵粉蚧第2、3代的种群趋势指数明显下降;采用IIPC分析,不同放蜂区扶桑绵粉蚧第2、3代自然种群增长的数量最低,分别下降到对照区的24.31%和12.82%,最高分别为34.79%和30.67%;采用EIPC分析,不同放蜂区班氏跳小蜂寄生的EIPC均大于捕食及其它因子,说明"寄生蜂寄生"是控制扶桑绵粉蚧种群动态的重要因子。
译  名:
Control efficiency of Aenasius bambawalei Hayat(Hymenoptera:Encyrtidae) on Phenacoccus solenopsis Tinsley(Hemiptera:Pseudococcidae)
作  者:
Yuan GAO;Jian HUANG;Zhu-Hong WANG;Yu-Qi WEN;Shun ZHONG;Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops,Ministry of Agriculture,College of Plant Protection,Fujian Agriculture and Forestry University;
关键词:
Aenasius bambawalei;;Phenacoccus solenopsis;;life table;;control efficiency
摘  要:
Aenasius bambawalei Hayat(Hymenoptera:Encyrtidae) is an important parasitoid of Phenacoccus solenopsis Tinsley(Hemiptera:Pseudococcidae).Natural polulation life table of P.solenopsis was constructed and the efficiency of A.bambawalei was analysed by index of population trend(I),interference index of population control(IIPC) and exclusive index population control(EIPC).The parasitic rate was highest when the ratio of A.bambawalei to P.solenopsis is 2 to 50.Index of population trend of the second and third generations of P.solenopsis was sharply decreased in biocontrol areas compared with CK area.The population of the second and third generations of P.solenopsis in biocontrol areas decreased to the minimum of 24.31% and 12.82%,and to the maximum of 34.79% and30.67% of that in CK area respectively according to IIPC.In biocontrol areas,the EIPC of parasitoid was larger than that of the predators and others,so the parasitoids were the dominant factor affecting the population of P.solenopsis.

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