蚜虫

Through the analysis of four indexes of N、S、T、H,the insect community of Trifolium repens L.

其中蚜虫、叶螨是春季昆虫群落的优势种。

Type genus of the Aphididae: injurious to fruit trees and vegetables .

蚜虫科的模式属；对果树和蔬菜有害。

If the plants are allowed to dry out, the aphids, previously wingless, change to winged insects.

如果让这棵植物枯萎，以前无翼的蚜虫就会变成有翅的昆虫。

The zymotic production by ferment cultivate and extraction from Tri-BA81 of Verticillium lecanii introduced from institute of Plant Protection of Russia, is applied to prevent five aphis.

从俄罗斯全俄植保所引入的蜡蚧轮枝菌Tri–BA81，经液体发酵培养，并经萃取、提纯得到代谢产物—蜡蚧轮枝菌素，并将其用于对5种蚜虫的毒杀作用研究。

Chrysopa septempunctata Wesmael is a kind of important natural enemy insects, which can control agricultural and forestry pests effectively, such as aphids, coccids and aleyrodid. Due to wide feeding habits, large appetite, wide distribution and large quantity, it has been paid great attention to by biological control workers.

大草蛉Chrysopa septempunctata Wesmael是一类重要的天敌昆虫，能够有效地控制蚜虫、蚧虫、粉虱等农林害虫，由于它的食性广、食量大、分布广、数量多而深受国内外生防工作者的重视。

The application of nuclear and mitochondrial gene sequences in the molecular phylogenetics of Aphididae is summarized, with a special focus on the scientific problems which they can resolve.

总结了核基因和线粒体基因在半翅目蚜虫分子系统发育研究中的应用。

The results showed that the aphids were either restrained or promoted when they fed on different treatment crops, compared with the control not fed by aphids and the corresponding treatment previously fed by different aphid species. S. avenae restrained the growth of S. graminum (MRGR=0.0974±0.0071) on 98-10-30, but S. graminum promoted the growth of S. avenae (MRGR=0.1614±0.0048) on 98-10-30. Penetrations of aphids promoted the growth of S. avenae on Amigo, while promoted growth of S. graminum on Batis.

结果表明：品种不同，蚜虫在不同处理条件下取食作物时受到的影响也不同，即在品种98-10-30上，通过与前期不接虫的对照及前期接不同麦蚜的相关处理比较，麦长管蚜对后期取食的麦二叉蚜(MRGR=0.0974±0.0071)具有抑制作用，而麦二叉蚜对后期取食的麦长管蚜(MRGR=0.1614±0.0048)却有促进作用；在品种Amigo上，前期麦蚜的危害对麦长管蚜的取食具有促进作用，而在品种Batis上前期危害对麦二叉蚜的取食具有促进作用。

Under controlled conditions in artificial bioclimatic chambers, adult aphids of red and green biotypes of Sitobion avenae were placed on two wheat varieties ('Astron' and 'Xiaoyan-22') and treated under 30W lamp of UV\|B for different durations respectively.

研究紫外辐射对红和绿体色型麦长管蚜的生物学特征的影响，探求紫外辐射在蚜虫种下体色分化及遗传中的作用。

Standard blends of Madeira are made mainly from the local grape varietal Tinta Negra Mole, whereas higher quality "reserve" and "vintage" Madeiras tend to be made from one of the four noble grapes traditionally used to make Madeiras—Sercial, Verdelho, Bual, and Malmsey (listed in ascending order of sweetness). All four of these noble grapes were destroyed by phylloxera at the end of the 19th century and are slowly being replanted on the island at considerable expense.

标准马德拉白葡萄酒主要采用当地的Tinta Negra Mole葡萄酿造而成；而品质较高的&珍藏&及&年份&级马德拉葡萄酒往往会采用四种传统用于酿造马德拉葡萄酒的贵族葡萄之一：Sercial葡萄、Verdelho葡萄、Bual葡萄或 Malmsey葡萄。19世纪末，岛上的四种贵族葡萄都遭受了根瘤蚜虫的彻底破坏，后来付出不小代价后，才重新在岛上种植。

A mutualistic relationship has been established during coevolution between aphid hosts and the primary endosymbiotic bacteria Buchnera.

已知绝大多数类群的蚜虫具有内共生细菌-布赫纳氏菌Buchnera，共生菌被局限在特殊的结构—&含菌细胞&中，简称&菌胞&。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。