小菜蛾

A Bacillus thuringiensis strain Bt25 with high insecticidal activity against several primary lepidopteran pests in China was identified by PCR-RFLP system, and subsequently a novel cry1Aa gene was cloned from it by PCR techniques.

Bt25是中国自行分离的对小菜蛾具有高毒力的苏云金芽孢杆菌，经PCR-RFLP鉴定含有cry1Aa基因。

Buy a Haro, Diamond-Back, Red-Line, or Mongoose from a Bike Dealer, and your going to be happy!

买一个哈罗，小菜蛾，红线，或鼬从自行车经销商，你也会很高兴的！

Olfactory responses of Plutella xytostetta to polyamines were measured using a Y-tube olfactometer in the laboratory.

在实验室条件下利用Y型嗅觉仪测试了小菜蛾Plutella xylostella成虫对多胺的嗅觉反应。

Meanwhile,the oviposition period and the female longevity were shortened by two days,compared with that of the control,and the male longevity were not affected.

同时，单管配对后成虫产卵率由对照组的70%下降到40%；小菜蛾雌成虫的产卵历期和寿命均缩短了2 d，而对其雄成虫的寿命影响不大。

The extracts from 14 species of unacceptable plants by the DBM were used in the experiment of controlling the oviposition of the diamondback moth female.

绝大部分供试植物的提取物可减少小菜蛾的落卵量40%以上，作用最强的是尾叶桉的抽提物，喷施24h后卵降低率达65.52%。

Based on the data a quadratic regression parasitism model of T. pretiosum to the eggs of DBM was constructed.

在此基础上建立了短管赤眼蜂对小菜蛾卵寄生率的二次回归模型。

The parasitoid is widely distributed in the north of China.

该蜂在我国北方广泛分布，田间寄生率通常在40～70%之间，最高时可达90%以上，在小菜蛾综合治理中具有很大的应用前景。

The larval parasitism of DBM by this parasitoid in the field usually ranges from 40 % to 70 %, with the highest parasitism rates of more than 90%, indicating high practical potential of this parasitoid to be integrated in the management of DBM....

作者在室内对采自云南的半闭弯尾姬蜂的生物学、生态学特性进行了系统、定量的研究，旨在为定量评估该蜂的控害潜能及保护利用、研究大田小菜蛾幼虫寄生蜂群落结构变化机制提供科学依据。

Periplocoside A had stomachic toxicity against Mythimna separate and Plutella xyllostella, and had topitical toxicity against Schizaphis graminum.

杠柳新苷A对粘虫、小菜蛾有一定的胃毒活性，对麦二叉蚜有一定的触杀活性，对菜青虫、小地老虎没有胃毒活性。

In contrast, adult females laid fewer eggs on Chinese cabbage infested by conspecific larvae than on intact Chinese cabbage.

采用不同溶剂去除甘蓝表面蜡质后，小菜蛾在其上的产卵量提高，但仍比在白菜上的要低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。