聊城大学学报：自然科学版2011，Vol.24Issue(3)：51-54,4.
不同时期美国白蛾蛹的死亡率研究
Mortality Study of Hyphantria cunea Pupae in Different Generations
摘要
Abstract
Relationships between the occurrence and mortality of Hyphantria cunea pupae in different generations was studied by investigating the mortality,sex and parasitic ratios.Results showed that the mortality of overwinter pupae in 2011 years increased 29.1%,and parasitic ratios increased 6% compared with 2010 years,however,the sex ratio of female to male decreased greatly from 1.22 to 0.89.There were three parasitic insects was observed,in which the main one is Coccygomimus disparis（Viereck）,but the other two have not been identified,which belongs to EuloPhidae and Muscidae,respectively.Results also showed that the pupae mortality of first generation was 41% lower than the overwinter pupae in 2011,and no natural enemies of insects was founded.Data indicate that H.cunea was somehow naturalized by the local ecosystem,which through the improvement of parasitic organism or other ecological compensations.关键词
美国白蛾蛹/死亡率/性别比/天敌昆虫/寄生率Key words
Hyphantria cunea pupa/mortality/sex ratio/natural enemies of insects/parasitic ratio分类
农业科技引用本文复制引用
张晓东,刘守柱..不同时期美国白蛾蛹的死亡率研究[J].聊城大学学报：自然科学版,2011,24(3):51-54,4.基金项目
聊城大学博士科研启动基金（31805）资助 （）
