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Part two, Three analogue compounds of actamiprid were synthesized by analogue synthesis method through the intermediates which have insecticide activity.

第二部分中,选取本身具有杀虫活性的基团取代吡虫清中的2-氯-5-氯甲基吡啶,采用"类同合成法"合成了3个烟碱类杀虫剂吡虫清的类似物。

Content: Avermectins belong to a group of compounds called macrocyclic lactones, which are natural products produced by the microorgamanism streptomyces avermitilis. In recent years the AVMs are used as a potent antiparasitic animal health drug in the treatment of parasitic infections for food producing animals.

正文:阿维菌素类药物(Avermectins,AVMs)是由放线菌产生的一组大环内酯类抗生素,通过阻断虫体神经元之间及节肢动物神经末梢和肌细胞间的神经冲动传导,使虫体麻痹而死。

Travel-associated infections can include giardiasis, cryptosporidiosis, amebiasis, isoporiasis, strongyloidiasis, and schistosomiasis.

与旅行相关的感染包括贾第虫病、隐孢子虫病、阿米巴病、等孢球虫病、类圆线虫病和血吸虫病。

A tide of immigration.class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas.

具颚节肢动物纲;龙虾类;螃蟹类;小虾类;十足类;水生跳蚤类;潮虫;附着甲壳动物;十足类;水生跳蚤类。

During this period, the respective removal of chemical oxygen demand, suspended solid, ammonion NH4(superscript + reached around 86%, 77%, and 91% respectively, while the F/M was around 0.12 kgCOD/kgMLSS-day. The effluent was clear, highly transparent and odorless. The microscopic observation showed that amount of Ciliata, such as Vorticella Convallaria, Vorticella Alba, and Vorticella Microstoma, could be found in the reactor's supernatant.

以显微镜观察微生物相时有固著型纤毛虫类出现,所谓活性污泥指标微生物,如白钟虫、钟形虫、小口钟虫、甚至旋轮虫等原生动物,污泥胶羽能凝聚成团、颗粒大、结构紧密、沉降性佳、处理水质清澈、透视度佳、无臭味。

The results of the study on the occurrence, distrbution and natural control effect of fourteen parasitic wasps parasitized on two scales in Zhejiang citrus planting areas are presented. The results indicated that Microterys flovus How., M. ceroplastae Prirtsloo, M.sp and Metaphycus pulvinariae How. of Encyrtidae and Coccophagus iycimnia of Aphelindae are predominant, the rate of parasitism is 80-100%. If any one of the above mentioned five species of parasitic wasp is occurred in the orchard, the damage caursed by those two scales could be controlled.

本文对浙江桔区这两类蚧虫的14种寄生蜂的发生、分布及其天然制约作用进行了深入研究,以跳小蜂科的软蚧花翅跳小蜂、蜡蚧花翅跳小蜂、黑褐花翅跳小蜂、软蚧阔柄跳小蜂和蚜小蜂科的赖食软蚧蚜小蜂为优势种,寄生率高达80%~100%,在桔园只要有上述5种中任何一种寄生蜂存在,足以控制两类蚧虫为害。

The results showed that the flavonoid chemicals of resistance to pests mainly including rutin, isoquercitrin and quercetin could be detected and quantitatively analyzed by HPLC.

结果表明,棉花组织中主要抗虫黄酮类化合物(包括异槲皮苷、芸香苷和槲皮素等)能够用HPLC方法检测并进行定量;异槲皮苷、芸香苷和槲皮素的含量均以花瓣中最高,花萼、苞叶和棉铃中较少;棉花生长中后期顶端嫩叶中抗虫黄酮类化合物的含量明显高于苗期。

In this paper,the fuzzy clustering analysis was carried out usingnine parameters of rice to synthetically appraise the resistance ofstored grain of 22 rice varieties to maize weevil Sitophilus zeamais Mots-chulsky.

作者考察了目前常用的抗虫指标,结果表明,采用不同的抗虫指标作为稻谷抗虫性分级的评定标准,其结果并不完全一致。因此,作者运用模糊聚类分析综合9个抗虫指标,对供试的22个水稻品种抗虫性进行了综合评估。

Under the support of the National, Guangdong and Guangzhou industrial incubation project, we have set up the biggest manufacture system and technology in China, which are even seldom seen in the world. We own: 2000L liquid fermentation industry system; 3 national invention patents including its manucfature and transport tenology Two types of entomathogenic nematode have got the import permission from the Agriculture Department of United States. Advanced methods of culture media and liquid cultivation conduce to the three times of production compared with other nematode commercial companies in the oversea, as well as the high quality control and transport technology are contributed to the firm fundamention of commercialization.

在国家,广东省与广州市等一系列产业化孵化项目的资助下,我们现已建立了年产50万亿线虫(可用于100万亩苹果小食心虫的防治),目前国内规模最大,国际上为数不多的生产系统和生产技术;拥有: 2000L 液体发酵生产系统;昆虫病原线虫产业化生产和储运技术等自主知识产权(3项国家发明专利);两个线虫产品已获美国农业部核准的&准入&许可优化的培养基配方和液体培养方案,可获得比国外线虫商业公司专利培养基高出三倍的线虫产量,以及完善的产业化质量控制技术和贮运技术,这些均为这类生物杀虫剂的产业化奠定了坚实基础。

Through the mediation of Nodule Agrobacterium, the insecticidal protein gene from pseudomonas pseudoalcalgenes has been transformed into the receptor materials to develop a new transgenic forage grass with the character of grasshopper resistance.

类产碱假单胞菌杀虫蛋白基因在大肠杆菌中的表达由于大肠杆菌的启动子不能识别类产碱假单胞菌杀虫蛋白基因,因此ppip基因不能直接在大肠杆菌细胞中表达。

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