桃蚜

The dispersal rates of green peach aphid increased along with the passage of time after treatment.

且随着处理后时间的延长，桃蚜的扩散率上升。

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

But pirimicarb and azadirachtin showed no significant effect on the wing dimorphism of M. persicae.

但抗蚜威和印楝素对桃蚜翅型分化没有表现出明显的影响。

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 results suggested that the sublethal doses of imidacloprid have the sustainable control function to M.

吡虫啉亚致死剂量胁迫下对桃蚜实验种群的干扰作用控制指数均小于1。

Influence of sublethal insecticides on the behavior of aphid could be one cause of the insecticide-induced resurgence of the pest insects.

亚致死剂量杀虫剂对桃蚜行为学上的影响可能是诱致蚜虫再猖獗的原因之一。

Coccinella septempunctata is a well-known natural enemies of pests, the adult may be preying on aphids, Aphis gossypii, Aphis Cassia, green peach aphid, scale insects, tick and other pests, can significantly reduce the trees, fruits and a variety of crop pests damage suffered by the people referred to as "living pesticide."

七星瓢虫是著名的害虫天敌，成虫可捕食麦蚜、棉蚜、槐蚜、桃蚜、介壳虫、壁虱等害虫，可大大减轻树木、瓜果及各种农作物遭受害虫的损害，被人们称为&活农药&。

As the development of resistance, the green peach aphid showed strong tolerance to pirimicarb and fenvalerate, so these two insecticides were not suitable for control the aphid in field for the risks to the natural enemy.

而抗蚜威和氰戊菊酯由于害虫抗药性或缺乏对天敌的安全性，已不宜用于桃蚜的化学防治。

If green peach aphids were grafted on the green cabbage,they developed and reproduced most rapidly.(2) If turnip aphid and green peach aphids were grafted on the tomato,they could not survive.

经黄色诱蚜，探求桃蚜和萝卜蚜的迁飞高峰规律看出，两者在一年中的迁飞高峰分别为5月中旬和11月中旬，同时曾采用多种颜色对两种蚜虫趋性的测定，其中以乳鸭黄诱得的蚜虫数最多。

The sublethal effects of 6 insecticides (imidacloprid, rotenone, fenvalerate, abamectin, pirimicarb and azadirachtin) on the green peach aphid Myzus persicae and its predatory natural enemy multicolored Asian ladybird Harmonia axyridis were determined from their biology, ecology and physiology for meeting the practical needs and coordinating the chemical and biological control.

为适应生产上的需要，协调运用化学防治与生物防治技术，本研究从生物学、生态学和生理学的层次上测定了吡虫啉、鱼藤酮、氰戊菊酯、阿维菌素、抗蚜威和印楝素6种杀虫剂对桃蚜及其捕食性天敌异色瓢虫的亚致死影响。

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