寄主

An unusual isolate from watercress mottle,in association withturnip mosaic and cucumber mosaic viruses,produced small white local necrotic lesions on sapinoculated leaves of Nicotiana tabacum,N.rustica,N.glutinosa,Datura stramonium,Solanumnigra,Brassica pekinensis,B.chinensis,B.campestris,Raphanus sativa,Nasturtium officinale,Spinacia oleracea and Amaranthus mangostanus while small brown local necrotic lesions onGomphrena globosa,Phaseolus vulgaris,Dolichos lablab...

在北京香山樱桃沟野生的十字花科豆瓣菜上发现有芜菁花叶病毒、黄瓜花叶病毒以及一种未报导过的&小白斑&病毒的复合病。小白斑病毒在20多种寄主上，包括十字花科，单独汁液接种时只能产生局部坏死病斑，不能系统侵染；单独接种而能系统感染的寄主有百日菊，只产生极轻微的深浅绿花叶，甚至有时几乎无病状。小白斑病毒能在复合病情况下系统存在于豆瓣菜中是值得注意的一种现象。

This dissertation dealt with comparing the host-preference in laboratory,searching ability with host plant in cage and greenhouse, crossing relationship amongsome Trichogramma species/strains used to control Ostrinia spp., ovipositon andmating behavior, the dispersal behavior and activity period in daytime, effects ofextracts of corn, mung bean and ECB female scale on searching behavior, functionalresponse, and effect of host eggs stored at low-temperatures on parasitization ofTrichogramma ostriniae. The principal results were summarized as follows

本研究涉及玉米螟赤眼蜂等5种11个品系赤眼蜂对欧洲玉米螟卵的选择性，赤眼蜂在箱笼和温室中对寄主卵的搜索能力，玉米螟赤眼蜂与用于防治欧洲玉米螟的三种赤眼蜂之间的亲缘关系，玉米螟赤眼蜂的产卵及交尾行为，玉米螟赤眼蜂在温室条件下的扩散行为及活动节律，玉米、绿豆及欧洲玉米螟雌蛾鳞片提取液对赤眼蜂搜索行为的影响，玉米螟赤眼蜂的功能反应以及寄主卵的低温储存对赤眼蜂寄生和羽化的影响等，主要研究结果如下

The female weevils oviposited on mung beans as well as adzuki beans in no-choice test, while they preferred adzuki bean over mung bean in choice test. To study the relationship between oviposition behaviour and host preference, three treatments (A: pure adzuki beans; M: pure mung beans; Mixed: mixed adzuki beans with mung beans) were provided to the female.

过去的研究报告指出，雌豆象成虫利用相对法则检视寄主品质，以决定是否产卵於寄主豆上；而且在非选择性试验中，雌虫产於绿豆或红豆的卵数相等；但在红、绿豆选择性试验中，雌虫则偏好产卵於红豆。

The mature wasp larvae pupated within the rear half of the host body (accounting for 30.17%) or in leafminer path 0-15 mm away from the host (69.83%).

老熟幼虫在寄主体内后半部（占30.17%）或脱离寄主0~15mm的潜蝇虫道内（占69.83%）化蛹。

Potassium feldspar and plagioclase xenocrysts are seen within these enclaves and the boundary between the host rock and the enclaves. These xenocrysts are trapped from the host magma by the enclave magma and are frequently resorbed into a round and sieve shape.

在包体内部或包体与寄主岩的边界均见有钾长石及斜长石捕虏晶，这种捕虏晶是包体岩浆从寄主岩岩浆中捕获的，常被熔蚀成筛状或浑圆状。

Cotton aphid is a polyagous insect pest. It can produce alatae to migrate or disperse among host plants, therefore cause the enlarged economic losses or plant virus diseases prevailing.

棉蚜是一种世界性害虫，其寄主范围较为广泛，并且可通过产生有翅蚜进行寄主间的转移，造成扩散为害和传播病毒病。

The progress levels of symptoms after pathogen infection showed that interaction of gray leaf spot pathogen and host has differentiation or polymorphism. The progress levels of symptoms is different.The aggressively has polymorphism. The pathogenicity of different isolates in same cultivar has polymorphism, or the host reaction type of same isolate in different cultivars has polymorphism.The host reaction type has differentiation. There are seven types of host reaction in cultivar and inbred after infected by GLS pathogen:Rectangular lesion without chlorotic halo, Rectangular lesion with chlorotic halo,Irregular lesion without chlorotic halo,Irregular lesion with chlorotic halo, Spot lesion with chlorotic halo,Rectangular and irregular lesionand Rectangular and spot lesion. The host reaction type is coalesced lesion when disease severely. Frequency of each reaction types is different.

通过对玉米灰斑病菌侵染后的显症过程的系统观察，可在组织水平上说明该病菌与寄主互作反应存在分化或多样性：玉米灰斑病菌不同菌株侵染后显症过程表现出明显的差异；玉米灰斑病菌在侵袭力上存在多样性，菌株间对同一种品种的致病性表现多样化，或者同一菌株对不同品种侵染引起的寄主反应表现为多样性；病斑反应型的分化，玉米灰斑病菌侵染玉米品种或自交系后，主要有7种病斑反应类型，即RH型、RN型、IRH型(不规则形具褪绿晕圈病斑)、IRN型(不规则形无褪绿晕圈病斑)、SH型、RI型(长矩形与不规则形混合病斑)和RS型(长矩形与斑点形混合病斑)，若发病严重，病斑连成片，而且这些反应类型出现的频率也不同。

It has many hosts but so far has been found predominantly in maples.

它可能有多种寄主但目前发现的主要寄主是枫树。

The results highlight the significant role of the infected migratory alates in initiation of Entomophthorales-caused mycoses on M.

结果表明，虫霉病能够通过寄主带病迁飞传至寄主迁入地，并在后代蚜群中相互传染而起到调节蚜虫数量增长的作用。

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。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。