蛾

The results from modeling and that from bioassay with Plutella xylostella appear to have a better consistency. It suggests that the resistance simulation modeling might be useful for predicting and analyzing the evolution of resistance of pest population to insecticides.

以小菜蛾Plutella xylostella为模型昆虫所作的试验结果表明，模型模拟与验证试验的结果具有较好的一致性，说明抗性模拟模型可用于害虫种群的抗性演化预测和分析。

Since the first reported field population of Plutella xyllostella become less sensitive to Bt, the number has reache...

自1985年Mcgaughey首次报道小菜蛾田间种群对Bt产生抗性以来，已报道有150多种害虫产生抗性。

Avermeetin has no contract poisoning toxicity to eggs and no effect on adult lifespan and mean number of eggs of Plutella xylostella .

阿维菌素对小菜蛾卵不具触杀毒力，对成虫寿命及产卵量无明显的影响作用。

To provide data for toxicity assessment of avermectin on diamond back moth, Plutella xylostella, the leaf protection role of avermectin was studied.

尝试采用叶片保护率评价阿维菌素对小菜蛾2龄、3龄幼虫的毒力，以期为该药毒力的准确评价提供资料。

Plutella year as a result of rampant development was very short, algebra and more frequent pesticide use, fast development of resistance, chemical pest control has become a major problem.

由于小菜蛾常年猖獗，发育期短，代数多，农药使用频繁，抗药性发展极快，已成为该虫化学防治的一大难题。

When transgenic rape leaves were fed to Plutella xylostera, mortality of second instar larvae ranged from 33％ to 47％ and the survival larvae had a less weight than the control.

对叶绿体转化植株进行虫试，结果表明，8天后小菜蛾幼虫的死亡率为33％-47％，未死亡的幼虫比对照体重减轻。说明所获得的叶绿体转基因植株具有杀虫和抑制幼虫生长的作用。

The effects of capsaicin on glutathione S-transferase and Na(superscript +)-K(superscript +)-ATPase of Plutella xylostella were tested with conventional methods in laboratory.

采用常规生化方法测定了辣椒碱对小菜蛾体内谷胱甘肽S-转移酶和Na-K-ATP酶活性的影响。

Diamondback moth,Plutella xylostella L.,a cosmopolitan pest of crucifers ,had shown resistance to more than 50 insecticides which had brought large difficulties in chemical control of pests.

小菜蛾是一种世界性十字花科蔬菜害虫，目前已对生产上常用的杀虫剂产生了不同程度的抗药性，给药剂防治带来很大的困难。

Bioassay showed that the LC50 of Cry2Ad2 against Culex pipiens and Plutella xylostella with a spreaded method was 205.3469μg/ml and 307.2562μg/ml, and it could also inhibit the growth of Leucania separate larvae.

对表达的Cry2Ad2蛋白进行生物测定，结果表明，Cry2Ad2蛋白对四龄淡色库蚊和三龄小菜蛾72小时的的LC50分别为205.3469μg/ml和307.2562μg/ml，对粘虫幼虫的生长发育也有明显的抑制作用。

Its insecticidal activity was evaluated. ZJ0967 exhibited higher insecticidal activity against Mythimna sepatara and Prodenia litura, followed by Plutella xylostella and Spodoptera exigua. The LC50 value against P.

室内生测结果表明，甲磺虫腙对小菜蛾Plutella xylostella、甜菜夜蛾Spodoptera exigua，特别是对粘虫Mythimna sepatara、斜纹夜蛾Prodenia litura表现出良好的杀虫活性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐