多寄主的

Access to a large number of Chinese and foreign literatures, this text summarized the life cycle of aphids including anholocyclic type, heteroecious holocyclic type and antoecious holocyclic type, and the important biological characteristics including alternation of generations, difference of hibernation and polymorphism, it offered the theory basic of comprehensive prevention and control.

通过查阅大量的中外文献，对蚜虫生活周期的不全周期生活史、全周期同寄主生活史和全周期异寄主生活史进行了阐述，归纳出蚜虫生活周期中的世代交替、越冬方式的差异、多型现象几个主要生物学特点，为蚜虫的科学控制提供一定的参考价值。

The cytoplasmic polyhedrosis virus of the silkworm is the prototype of a large group of animal, plant, fungal and bacterial viruses that contain segmented double stranded RNA.

以双链核糖核酸为基因组的病毒寄主范围很广，如哺乳动物的呼肠病毒，昆虫的细胞质多角体病毒，植物的水稻矮缩病毒，以及某些微生物的病毒，已经发现有十余种之多。

The cytoplasmic polyhedrosis virus of the silkworm is the prototype of a large group of animal, plant, fungal and bacterial viruses that contain segmented doublestranded RNA.

以双链核糖核酸为基因组的病毒寄主范围很广，如哺乳动物的呼肠病毒，昆虫的细胞质多角体病毒，植物的水稻矮缩病毒，以及某些微生物的病毒，已经发现有十余种之多。

The Carmine spider mite (Tetranychus cinnabarinus Boisduval) which is allied to Tetranychus urticae Koch, is one of the serious pests with polyphagy in agriculture, found to infest the mulberry and more than 100 other host plants.

朱砂叶螨(Tetranychus cinnabarinus Boisduval)是多食性主要农业害螨之一，与二斑叶螨是近似种，寄主包括桑树在内的100多种植物。

Plants of aphids include 58 genera in 30 families, among which Gramineae, Moraceae, and Lauraceae have

其次为扁蚜科和斑蚜科；寄主植物中寄生蚜虫类群最多的3个科分别为：禾本科、桑科和樟科。

H. armigera is a typical polyphagous insect. And its host plants include at least 60 crop species such as cotton, corn, wheat, soybean, tobacco and tomato and 67 wild plant species from about 30 plant families including Malvaceae, Solanaceae, Gramineae, Leguminosae, etc. H. assulta is an oligophagous insect and mainly feeds on tobacco and hot pepper in the field.

棉铃虫是典型的多食性昆虫，其寄主至少有60种作物，包括棉花、玉米、小麦、大豆、烟草、番茄等以及67种野生植物，涉及锦葵科、茄科、禾本科、豆科等30余科；烟青虫是一种寡食性昆虫，农作物中主要为害烟草和辣椒。

Liriomyza trifolii is a highly polyphagous and cosmopolitan pest. According to the investigation, the host range of L. trifolii has extensive embraced more than 400 species in 25 families. Females of L.

非洲菊斑潜蝇是一种高度多食性且为世界性分布的重要农业害虫，根据统计，其寄主植物囊括了 25 科，共超过 400 种以上的记录，是潜蝇科中非常少数特殊的多食性种类。

The species of Sphingidae (Lepidoptera: Sphingidae ) in garden plants in Guangzhou and their hosts;2. Based on the study of species and hostplants of Sphingidae in Beijing,It is reported that there are 24 genus,38 species of SPhingidae distributing in this area,and indicates the existence of Langia zenzeroides szechuana in Beijing at the first time.

通过对北京地区天蛾的种类、数量及寄主植物的调查，首次报道北京地区共有天蛾24属38种及亚种，并且首次报道了川锯翅天蛾等种类在北京地区的分布，经调查，北京地区天蛾的寄主植物有27科，通过食性分析发现多食性种类占大多数。

Green peach aphid Myzus persicae,is one kind of pest distributed generally in all over the world. Its hosting plants are about 50 families and 400 species.

桃蚜Myzus persicae又名烟蚜，桃赤蚜，是一种几乎广布全球的多食性害虫，寄主植物已知达50 多个科400 多种。

Among them multi-types of body colour and special types of hosts are the most universal phenomena. In our experiment, methods of microsatellite primer PCR molecular marker and partial gene sequence analysis of mitochondrial DNA COⅠ-Ⅱwere used to analyze genetic diversity of two body colour bio-types (red bio-type and green bio-type) of green peach aphid from different plants and relationship between green peach aphid and host plants by separately selecting individuals of aphid from rape, Chinese cabbage and tobacco. The main results as follows: 1. Selecting An Ruisheng'method of extracting DNA from small sized insect, using this method can extract DNA well and steadily.

本文采用微卫星引物PCR 分子标记和线粒体COⅠ-Ⅱ部分序列分析的方法，分别选取十字花科植物中的甘蓝和油菜，茄科植物中的烟草，对不同寄主上桃蚜的红色和绿色两种体色生物型的遗传多态性及其与寄主植物的关系进行了研究，取得的主要结果如下： 1、选取安瑞生(2002)小型昆虫DNA 提取方法，能很好且比较稳定的提取桃蚜基因组DNA。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。