查询词典 myzus persicae

Uses: A selective aphicide used in cereals, fruit, ornamentals, strawberries, potatoes, sugar beet, fodder beet, cotton, oilseed rape, tobacco, and glasshouse crops, effective against organophosphorus-resistant Myzus persicae . Phytotoxicity: Compatibility

抗蚜威对瓢虫、食蚜蝇、蚜茧蜂等蚜虫天敌没有不良影响，因保护了天敌，而可有效地延长对蚜虫的控制期，抗蚜威对蜜蜂安全，用于防治大白菜、萝卜等蔬菜制种田的蚜虫时，可提高蜜蜂授粉率，增加产量。

The Controlling Effects of Emulsion of Stemona, Chinaberry alkali and Tobacco alkali on Myzus persicae and Their Residual Test in Lettuce

百部？楝？烟乳油防治桃蚜及其在莴苣上的残留试验

Peach aphid (Homoptera: Aphididae), Myzus persicae, is one of the most economically important pests that result in decreasing of yield and quality of crops of agricultural and horticultural crops throughout the world.

桃蚜属同翅目，蚜科，瘤蚜属，是世界上分布最广、危害最大的蚜虫类害虫之一。

Field experiments demonstrated that efficacy of 30% dichlorvos and omethoate for Caloptilia dentata was over 80%, for Drosicha corpulenta was 95.9% and Psylla willieti 96.4%. For Parathrene tabanifomis, Anoplophora glabripennis, Apriona swainsoni and Panonychus ulmi also gained perfected efficiency, and injection dosage of 2.0ml/cm φ for Myzus persicae obtained 100%result, for Eriococcus lagerostioemiae which damage Punica gianatum the result was 92.96%. In all, the efficiency of 30% diohlorvos · omethoate control of most pests was better than bisultap, decis, acephate, nicotine and avermectin, etc.

田间防效结果表明30%敌畏·氧乐对元宝枫细蛾的防治效果可以达到80%以上，对草履蚧和槐木虱防效分别大于95.9%和96.4%，对白杨透翅蛾幼虫、危害新疆杨和合作杨的光肩星天牛幼虫、危害国槐的锈色粒肩天牛幼虫、危害苹果的榆全爪螨等可达到理想防效，当施药剂量为2.0 ml/cmφ时对桃蚜的防效达100%，对危害石榴的紫薇绒蚧防效可达92.96%以上。30%敌畏·氧乐对大多数害虫的控制作用优于杀虫双、敌杀死、乙酰甲胺磷、烟碱和阿维菌素等。

The spatial,temporal and two-dimensional niche breadths and niche overlaps of Hyalopterus amygda/i, Myzus persicae and their main natural enemies were studied in this paper. The results showed that the synchronism and sympatry of the pests and their natural enemies Harmonia axyridis, Propylaea japonica and Chrysopa septempunctata were both higher, which provided a foundation for protecting and using natural enemies to control the two pests.Key words: Hyalopterus amygdali; Myzus persicae; Natural enemies; Ecological niche

为了保护利用天敌，充分发挥天敌对害虫的自然控制作用，作者对桃粉蚜、桃蚜及其主要大敌在时间维度、空间维度和时—空二维生态位宽度和生态位重叠进行了研究，评价了4种主要大敌异色瓢虫、龟纹瓢虫、大草岭、蜘蛛对这2种害虫在时间和空间上的跟随作用和控制效果，为桃园桃粉蚜、桃蚜两种害虫的生态控制提供理论依据。

To further explore the phylogenetic relationships between the aphid Myzus persicae and its endosymbiotic bacterium Buchnera, COⅠ/COⅡ, 12S/16S rRNA and EF-l alpha genes in four populations of M. persicae were amplified. Through phylogenetic trees constructed by the COⅠ/COⅡ, 12S/16S rRNA and EF-l alpha genes in M.

为进一步明确桃蚜与其内共生菌Buchnera之间系统进化关系，参照前人研究蚜虫系统进化所用的COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha的3对引物，对桃蚜的COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha基因进行了扩增，并构建了桃蚜COⅠ/COⅡ、12S/16S rRNA、EF-1 alpha基因序列系统进化树。

Myzus persicae were prevail in plantation of Chaenomeles spciosa, occurrence degree had no relative with altitude , but had direct ratio with the number of summer

桃蚜在资丘木瓜种植区普遍发生，发生程度与海拔高度无明显相关性，但与木瓜树的夏梢多少成正比；研究有蚜株率和蚜情指数与木瓜产量的相关性表明：当蚜情指数达0.3以上时，木瓜产量降低60％以上；采取及时剪去嫩梢或喷洒1％洗衣粉40kg／666.7m~2等无害化治理措施能有效的防治蚜害。

The results showed that extracts from Datura metel seeds had strong antifeeding effect on Agelastica alni orientalis, Apocheima cinerarius and Vanessa indica. They also had high contact toxicity on Myzus persicae and Chaitophorus populeti.

结果表明，白花曼陀罗种子提取液对杨毛臀萤叶甲东方亚种成虫、春尺蠖和荨麻蛱蝶幼虫具有较强的拒食活性，对蚜虫具有较强的触杀活性。

Effects of control Plutella xylostella,Pieris rapae were 75.9%～83.5% and 46.9%～57.1% of Myzus persicae was controlled at same time.Rectify effect of control Aphis me...

在低浓度时对天敌生物影响更小，是高毒高残留农药理想的替代品种，可以大面积推广应用。

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。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐