查询词典 aphids

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。

Grandis adult on peach aphid increased with the increment of peach aphid density when peach aphids were in 20 - 120 heads/dish, reached maximum （83.889 heads） and decreased when peach aphids were more than 120heads/dish.

方法在放有1头大突肩瓢虫成虫的培养皿中分别放20、40、60、80、100、120、140、160、180头无翅桃蚜，室内自然条件下饲养，研究大突肩瓢虫成虫对桃蚜的捕食作用。

Alternation of sexual and parthenogenic generations, as in some aphids.

世代交替双性与单性生殖交替进行，如一些蚜虫中

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。

Because the aphids on the lower lip and no chemoreceptor stylet, the sap of plant cells need to be inhaled by the throat to feel and distinguish the taste organs.

因为蚜虫的下唇和口针上并无化学感受器，因此需要吸入植物细胞汁液由咽部味觉器官去感受和区分。

Cucumber mosaic virus, which is transmitted by over sixty species of aphids and infects over 1000 species of plants,has been processing a gradual severity in the past fifteen years.

现今一些传统农产品表现为明显的品质退化和产量萎缩，其中最主要的原因之一是植物病毒的发生和危害加重，后者是由植物、病毒和传毒媒介昆虫等与环境因子共同作用的结果。

The system could provide the real-time information on occurrence of more than 60 different kinds of diseases and pests in wheat, corn, rice, potato, sorghum and millet of China as well as diagnosing, knowledge providing and short-term controlling decision for nine kinds of important diseases and insect pests, including powdery mildew, sharp eyespot and scab of wheat, rice blast, rice false smut, potato late blight, aphids, grain gall midge of wheat and corn borer, based on crop resistance, primary level of pests and short-term weather forecast.

本系统能够对小麦、玉米、水稻、马铃薯、高粱和谷子6种主要粮食作物的60余种病虫害进行实时监测、预警、诊断、提供植保知识，能够对年度间同期病情、虫情做出图形比较，可将抽象的预警数据转化成清晰简明的点图式电子地图，直观明了地显示病虫害发生点数及地域分布，可根据品种的抗病虫性、病虫害发生基数和未来天气预报等信息对小麦白粉病、赤霉病、纹枯病、稻瘟病、稻曲病、马铃薯晚疫病、麦蚜、小麦吸浆虫和玉米螟9种重要病虫害做出短期防治决策，系统的运行有助于提高人们对主要粮食作物病虫害管理的科学水平。

Harmonia axyridis is one of the important predations, and it can prey many kinds of aphids, it has very useful foreground in biological control.

异色瓢虫是一种重要的捕食性天敌，可捕食多种蚜虫，在生物防治中具有很大应用前景。

The functional response of Harmonia axyridis to aphids was simulated with models of Holling-Ⅱ.

捕食者对猎物的功能反应均属于Holling-Ⅱ型方程。

The study found:(1)Dry mixed feed and live aphids feeding Harmonia axyridis, ladybird completely to ensure normal growth and development and livability.

研究发现：(1)烘干饲料和活蚜虫混合饲养异色瓢虫，完全能保证瓢虫正常的生长发育和存活率。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"