瓢虫

The major dominant species of predatory enemies were Erigonidium graminicola and Theridion octomaculatum and their individuals were 81.4 percent of the total predatory enemy individuals of the community.1.2 Spatial patterns and their dynamics of major dominant predatory enemies ofarthropod communityThe research results showed that Pieris rapae distributed mainly on heart leaves and back of inner leaves of cabbage plants, Plutella xylostella distributed mainly on the back of cabbage leaves and Lipaphis erysimi distributed widely in cabbage plants. Among the major dominant species of predatory enemies, Sitticus sinensis distributed mainly on the front of leaves of cabbage plants in spring cabbage fields, and Misumenopos tricuspidata and Propylaea japonica distributed widely in cabbage plants.

在捕食性天敌中蜘蛛10种，捕食性昆虫3种，主要优势种为草间小黑蛛、八斑球腹蛛，其数量占捕食性天敌总数量的81.4%。1.2节肢动物群落主要优势种的空间格局及其动态研究结果表明，害虫优势种菜青虫主要分布于甘蓝心叶和甘蓝叶反面，小菜蛾主要集中分布在甘蓝叶的反面，而菜蚜在甘蓝植株内的分布较广；春甘蓝田捕食性天敌优势种中华跃蛛在外层叶正面分布较集中，三突花蛛与瓢虫类在甘蓝植株内的分布较广。

The characteristics of vitellin and its content in vitellogenesis were studied in Propylea japonica. The characterization of vitellin was carried out by PAGE and SDS-PAGE.

研究了龟纹瓢虫Propylea japonica卵黄蛋白的基本特性以及卵黄发生过程中卵黄蛋白的动态变化。

The results indicated that vitellin had a molecular weight of approximately 294.81±40.70 kD and was composed of two subunits, whose molecular weights were 144.68±0.03 kD and 51.23±0.27 kD respectively.

PAGE和SDS-PAGE实验表明，龟纹瓢虫卵黄蛋白分子量为294.81±40.70kD，并由分子量分别为144.68±0.03kD和51.23±0.27kD的两种亚基组成。

Using indirect ELISA, the contents of vitellin in the fat body, haemolymph and ovary of P. japonica were detected. The results suggested that the vitellogenin was synthesized in fat body at the 2nd day after eclosion. The contents of vitellogenin in fat body, haemolymph and ovary increased quickly on the 4th day after eclosion and reached the peak stage approximately on the 8th day in adult stage.

采用间接竞争ELISA法，系统测定了龟纹瓢虫成虫期脂肪体、血淋巴和卵巢中卵黄蛋白的动态变化，结果表明：脂肪体是卵黄原蛋白合成的场所，卵黄原蛋白的合成始于羽化后第2天；脂肪体、血淋巴和卵巢中卵黄原蛋白的滴度在羽化后第4天开始迅速上升，至成虫期的第8天左右达到高峰期。

Under the laboratory conditions of natural temperature , several kind of predacious ladybugs were fed. We had an detailed observation to their life habit and predatory function to aphids.

在实验室自然变温条件下对几种捕食性瓢虫进行人工喂养，对其生活习性以及对蚜虫的捕食量进行详细的观察记录。

The experimental result indicated that the predacious ladybugs'generation period is between 11 to 18 day, the female daily egg production is different in the 10~40 between July to August in Laiyang area of Shandong province.

实验结果表明在山东莱阳地区7.8月份的自然温度条件下捕食性瓢虫的世代历期为11-18天，成虫单雌每天产卵量在10-40粒不等。

Different kinds of lady beetles have different numbers of spots.

不同的瓢虫有不同的斑点数。

Many of the well-known kinds of lady beetles come from Asia or Europe.

许多种知名的瓢虫大多来自亚洲或欧洲。

Different kinds of lady beetles have different numbers of spots.

不同种类的瓢虫身上斑点数也不尽相同。

The research will provide the scientific basis for controlling Brevicoryne brassicae by use of Leis axyridis.

该研究为正确评价异色瓢虫控制甘蓝蚜的作用提供了科学依据。

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。