二化螟绒茧蜂过寄生现象的初步研究  

PRELIMINARY STUDIES ON THE HYPERPARASITISM OF APANTELES CHILONIS

作　　者：杭三保[1] 沈国清[1] 陆自强[1] 

机构地区：[1]江苏农学院植物保护系,扬州225001

出　　处：《江苏农学院学报》1993年第3期69-72,共4页Jiangsu Agricultural Research

基　　金：江苏省教委自然科学基金

摘　　要：在室内通过对二化螟绒茧蜂过寄生现象的研究发现,二化螟绒茧蜂的蜂体大小与寄主体内寄生蜂数量呈线性负相关。而寄主育出蜂量与寄主体长呈线性正相关。一头寄主可被二化螟绒茧蜂多次产卵寄生,被产卵1～2次的寄主能正常育出绒茧蜂,且体内很少残留不能正常发育的二化螟绒茧蜂卵和幼虫,而被产卵3次以上的寄主死亡率高,即使存活,也只有部分二化螟绒茧蜂能正常钻出寄主,多数蜂幼虫和卵不能正常发育而死亡。当二化螟绒茧蜂在不同间隔时间内对寄主进行2次产卵寄生吋,均可育出正常后代,但第二次产下的蜂后代因种内竞争失败而不能正常生长发育。According to the studies on the A. chilonis hyperparasitism in laboratory, the development of A. chilonis related to the host nutrition. There was a negative correlation between the size and the number of parasite in the host larvae. However, there was positive correlation between the number of parasite developed from the host and the length of host. One host larvae could be oviposited to parasite several times by A. chilonis. A. chilonis could develop normally from the host oviposite to parasite 1 or 2 times. A. chlonis egg and larvae which couldn't develop normally were scarcely in the host. However, the mortality of the host which was oviposited to parasite morn than 3 times was high. Even be survival, a small number of A. chlonis could break out the host. Most of A. chilonis larva and egg couldn't development normally and died. When A. chilonis oviposited to parasite two times on the host at the different interval time, the normal generation could develop. But the intraspecific competition failed for A. chilonis generation which developed at the second time.

关 键 词：二化螟 二化螟绒茧蜂 过寄生 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]