作 者：
段彦丽;曲良建;王玉珠;张永安;陶万强;关玲;杨忠岐
单 位：
北京市林业保护站;中国林业科学研究院森林生态环境与保护研究所
关键词：
持续作用;美国白蛾核型多角体病毒;传播途径
摘 要：
用不同浓度的美国白蛾核型多角体病毒亚致死剂量感染美国白蛾4龄和5龄幼虫,并分别收集不同处理的残余带毒试虫进行室内传代饲养。结果表明:病毒对寄主昆虫不仅具有直接致死作用,而且对蛹重和雌虫产卵量均有明显影响,尤其是对亲代、子一代和子二代寄主昆虫。对病毒传播途径的研究证实HcNPV可通过多种途径传播到寄主种群中。
译 名：
Sustainable Effects for Hyphantria cunea Nuclear Polyhedrosis Virus on the Host Insects and the Diffusion Approach of the Virus
作 者：
Duan Yanli1 Qu Liangjian1 Wang Yuzhu1 Zhang Yongan1 Tao Wanqiang2 Guan Ling2 Yang Zhongqi1(1.Key Lab.of Forest Protection of State Forestry Administration Research Institute of Forest Ecology,Environment and Protection,CAF Beijing 100091;2.Forestry Protection Center in Beijing Beijing 100029)
关键词：
sustainable effect;Hyphantria cunea nuclear polyhedrosis virus(HcNPV);diffusion approach
摘 要：
Fourth and fifth instars larvae of fall webworm,Hyphantria cunea,were infected with different concentrations of Hyphantria cunea nucleopolyhedrovirus(HcNPV).Survivors were collected and reared in laboratory respectively.Mortality of the larvae,average weight of the single pupae,laying eggs for the female and hatch rate of the eggs were observed in parental generation and successive filial generations.The results showed that the virus not only led to death of larvae in parental and filial generation,but also impacted the average weight of the single pupa and laying eggs,especially to the parental and the first filial generation.The virus could weaken the host in filial generations,which could control populations of the host for a long time.Meanwhile,it was proved that HcNPV can spread and diffuse in the host population by many approaches.
