CAJ | 학술논문

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。
반씨도소봉Aenasius bambawalei Hayat시부상면분개Phenacoccus solenopsis TinsLey적중요기생봉。본문연구료재불동봉개비조건하，반씨도소봉대부상면분개적기생효능，병조건부상면분개자연충군생명표，채용충군추세지수（ I）、간우작용공제지수（ IIPC）화배제작용공제지수（ EIPC），분석반씨도소봉대부상면분개적공제작용。연구결과표명，당봉개비위2：50시，반씨도소봉기생솔최고，체92％；이반씨도소봉밀도과고혹과저균회도치기생솔하강。채용I분석，여대조구상비，방봉구부상면분개제2、3대적충군추세지수명현하강；채용IIPC분석，불동방봉구부상면분개제2、3대자연충군증장적수량최저，분별하강도대조구적24.31％화12.82％，최고분별위34.79％화30.67％；채용EIPC분석，불동방봉구반씨도소봉기생적EIPC균대우포식급기타인자，설명“기생봉기생”시공제부상면분개충군동태적중요인자。
Aenasius bambawalei Hayat( Hymenoptera:Encyrtidae)is an important parasitoid of Phenacoccus solenop-sis TinsLey( Hemiptera:Pseudococcidae). NaturaL poLuLation Life tabLe of P. solenopsis was constructed and the effi-ciency 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. bambawa-lei 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. so-lenopsis in biocontroL areas decreased to the minimum of 24. 31% and 12. 82%,and to the maximum of 34. 79% and 30. 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.