性蚜

2 kinds of imidaclopri pesticide, 70% imidaclop rid WDG and 20% Pushiya WP were to study the effect of low dose imidaclopri pesticide at different diluting ratio on the predation, function reflection of predation and reproduction of A. variegate. When 20% Pushiya WP was diluted at 1:2000 the predating rate of A.

方法］采用艾美乐70%水分散粒剂和20%扑虱蚜可湿性粉剂两种吡虫啉药剂，研究了不同低剂量吡虫啉农药的配比对多异瓢虫捕食、捕食功能反应、生殖力的影响。

During the first 7-day period, 639 alates died from mycoses caused by several obligate aphid pathogens in the Entomophthorales, representing a primary infection rate of 27.2% among the air-trapped alates.

自2002年10月至2005年5月在杭州上空诱获桃蚜的迁飞性有翅蚜2351头，将其带回室内在(21±1)℃和12L：12D条件下单头饲养12d，其中639头在定殖后7d内发病死亡，初始感染率达27.2%。

Moreover, the obligative parthenogenesis individuals had been found in the cucumber specialized aphids, but not in the cotton specialized aphids.

瓜型棉蚜在诱导条件下产生无翅孤雌蚜的比率显著高于棉花型棉蚜，并且发现有不产生有性世代的营专性孤雌生殖个体，而在棉花型棉蚜中没有发现。

The selective behaviour, fitness, cause formation and population differentation of the cotton aphid''s host biotype were studied on this project. The results showed that the cotton and cumbrits biotype aphid were existed in natural population in Nanjing .

本项目研究了南京地区棉蚜对寄主的选择与适应性、寄主专化型的成因、寄主专化型蚜在DNA水平上的多态性及棉蚜迁飞特性的种群分化、迁飞型种群的遗传响应与杂交遗传。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。